The Best Period Underwear in Australia for 2026

Two brands sell period underwear labelled "moderate", and one holds twice as much as the other. Bonds says its Bloody Comfy Moderate range absorbs about three tampons' worth. Modibodi says its Moderate 30 ml range absorbs about six. Same word on the label, double the capacity. If you have ever bought period undies that gave up halfway through the afternoon, that mismatch is probably why.

This guide is about picking the right product, not about managing your health. We report absorbency exactly as the maker states it on the Amazon AU listing, because no shared Australian standard forces brands to measure the same way. If your flow is changing, unusually heavy, or worrying you, that is a conversation for a GP or Healthdirect, not a shopping page. What we can do is tell you what each listing claims and where the sizing and capacity complaints sit. Six of the seven picks are reusable, which is the whole point of the category: you buy a rotation once and wash it, rather than buying pads or tampons every month.

Period underwear is reusable underwear with a built in absorbent layer that you wash and wear again, instead of a pad or tampon. Absorbency is the stated capacity in millilitres, or the brand's tampon equivalent, and brands set their own conversion: Bonds counts moderate as 3 tampons' worth and Modibodi counts moderate as 6. OEKO-TEX Standard 100 is a textile testing standard for harmful substances, not a health claim.

Which period underwear should you buy in Australia right now?

For most people the Modibodi Classic Full Brief Super is the one to buy. Its Amazon AU listing states capacity up to 50 ml, about 10 tampons, in a slim 3 mm lining with a merino wool layer, and it holds 4.6 stars from 72 ratings. The Bonds Bloody Comfy Full Brief Moderate suits lighter days.

For regular days, the Modibodi Mid-Rise Brief Moderate 30 ml is the sensible everyday buy, rated 4.4 from 120 ratings and listed as certified to OEKO-TEX Standard 100. If you are trying the category for the first time, the Bonds pair above is the place to start, with 4.6 stars from 210 ratings. Buy two pairs before you buy six: fit is personal, and a pair that rides up on you can sit perfectly on someone in the same dress size.

What is the top rated period underwear in Australia?

Our pick is the Modibodi Classic Full Brief Super, rated 4.6 from 72 ratings on Amazon Australia, because its listing states up to 50 ml, about 10 tampons. The Bonds Bloody Comfy Full Brief Moderate shares the 4.6 rating from 210 ratings but absorbs up to 3 tampons' worth, so it suits lighter days.

Ratings are Amazon customer ratings, not our own test. The other picks follow in order: the Whisper at 4.5 from 8,080 ratings, the Modibodi Mid-Rise Brief Moderate at 4.4 from 120, the Walifrey at 4.1 from 1,566, then the Modibodi Seamless Boyshort and the INNERSY pack at 3.9 from 37 and 57. Rating alone does not decide the pick, so match the stated capacity to your flow.

Which pair suits which situation:

• Heavier days and overnight: the Modibodi Classic Full Brief Super, which states up to 50 ml.
• Everyday wear: the Modibodi Mid-Rise Brief Moderate 30 ml, which states up to 30 ml.
• A first pair to try: the Bonds Bloody Comfy Full Brief Moderate, rated 4.6 from 210 ratings.
• Under fitted clothes: the Modibodi Seamless Boyshort 2 Pack Super.
• Building a rotation: the Walifrey Period Pants 2 Pack.
• When you cannot wash and dry: the Whisper Super Absorbent Period Panty.
• A first period at school: the INNERSY Teen Girls' Cotton Period Underwear 3-Pack.

How did NestPath choose these period undies?

NestPath does not run a laundry lab and will not pretend otherwise. We read each Amazon Australia listing, including its title, product information table and description, and we report capacity exactly as the maker words it. Every pick was confirmed in stock on Amazon Australia and carries a real star rating on a review base we were willing to quote.

We left out listings with only a handful of reviews, because a rating from three people is noise. The INNERSY teen pack stayed in at 3.9 stars, level with the Modibodi seamless boyshort, because a first period at school is a common reason to shop and an honest verdict beats leaving it out. The details we quote are for the specific size and colour variation we link, and a different variation of the same listing can differ.

How do the seven picks compare on absorbency and rating?

Absorbency is the spec that decides how a pair performs, and brands describe it inconsistently. The table shows every pick with its capacity worded as its listing words it, whether it is reusable, the Amazon rating with the review count in brackets, and the outer fabric. Where no millilitre figure exists, we say so rather than guess.

Read the table sideways and a pattern shows. Only three products state a millilitre figure on their listings, and all three are Modibodi. Bonds states tampon equivalents instead, and the other three give no capacity number. That is not a reason to avoid them, only a reason to buy one pair first.

Last checked: 16 October 2026

Best overall: Modibodi Classic Full Brief Super for heavy days and overnight

Choose the Modibodi Classic Full Brief Super for heavy days and overnight: it is our best overall pick, rated 4.6 from 72 ratings on Amazon Australia. Its listing states capacity up to 50 ml, about 10 tampons, with a 3 mm lining built from several layers and a waterproof, breathable base. Only the seamless boyshort also states 50 ml.

The construction is what earns the place. The listing describes a slim 3 mm lining built from several layers, a merino wool layer that helps wick moisture, an absorbent core to hold it, and a waterproof, breathable base as an extra barrier. The fabric table shows an outer of viscose made from bamboo cellulose with 5 percent elastane, and a gusset top layer of 100 percent merino wool. The listing also carries an OEKO-TEX Standard 100 pill.

The reviews we could read on the listing back the overnight use. One Australian review is titled Game Changer for Overnight Protection, and another reviewer says they have worn them all day for day three of their period and they feel great. Care is spelled out on the listing: rinse after use, machine wash cold on a gentle cycle and line dry.

Flaws but not dealbreakers

The waistband elastic is narrow. One reviewer with a small waist says it does not dig in but suspects it could feel tight on a bloated day, a fair warning for a brief bought for exactly those days. The listing is also marked non returnable due to product safety reasons, so check the size chart before you order. At up to 50 ml it carries more capacity than a light day needs, so if your heaviest days are not that heavy, the Mid-Rise below may be enough.

Is the Modibodi Mid-Rise Brief Moderate 30 ml a good everyday period brief?

The Modibodi Mid-Rise Brief Moderate 30 ml is the everyday pick, rated 4.4 from 120 ratings on Amazon Australia. Its listing states up to 30 ml, the equivalent of 6 tampons, and OEKO-TEX Standard 100 certification. The outer is 95 percent organic cotton, though the gusset top layer is polyester.

The fabric is the reason to choose it for everyday wear. The fabric table shows an outer of 95 percent organic cotton with 5 percent elastane, and OEKO-TEX Standard 100 is a textile testing standard for harmful substances rather than a health claim. The gusset top layer is 85 percent polyester with 15 percent elastane, so if you want cotton throughout, this is not that pair. The brand's own guidance is to stick with your usual size.

Care on the listing is gentle cycle, cold water and hang to dry, with no fabric softeners or strong detergents and no tumble drying or high heat. The listing is also marked non returnable due to product safety reasons, which matters if the size is wrong.

Flaws but not dealbreakers

At 30 ml this is not the overnight option, and the listing does not pretend it is: it describes the capacity as ideal for moderate flow days. Because Amazon marks it non returnable due to product safety reasons, check your size against the chart before you wash them, and stick with your usual size as the brand advises.

Is the Bonds Bloody Comfy Full Brief Moderate a good first pair of period underwear?

To try the category, start with one Bonds Bloody Comfy Full Brief Moderate. Bonds publishes its whole absorbency ladder, with moderate at 3 tampons' worth, and this listing holds 4.6 stars from 210 ratings, level with the Modibodi Classic Full Brief Super. Buy one or two pairs first, because fit is personal.

The ladder is the useful part: ultra light equates to 1 tampon's worth, moderate to 3, heavy to 4 and overnight to 8. This pair is the moderate rung, less than Modibodi's moderate, and knowing that up front is worth more than any star rating. The listing describes a redesigned longer, soft and stretchy built in gusset, a stretchy cotton blend body, and moisture wicking and odour neutralising technology.

Bonds describes the fit as designed to be snug and says to size up if you prefer a bit more wiggle room. Care is three steps: rinse until the water runs clear, cold wash, then line dry only, and the listing says to hold the bleach and the fabric softener. The listing is a single pair.

Flaws but not dealbreakers

At 3 tampons' worth this is a moderate day product, so use it to trial the category and look to a published millilitre figure, such as the Modibodi Classic Full Brief Super, for the overnight slot. Bonds also says the fit is snug by design, so if you are between sizes, size up.

Is the Modibodi Seamless Boyshort 2 Pack Super 50 ml a good pair for fitted clothes?

For fitted clothes, the Modibodi Seamless Boyshort 2 Pack Super is a seamless cut that states up to 50 ml, about 10 tampons. The outer is 94 percent recycled nylon, a synthetic, and it rates 3.9 stars from 37 ratings on Amazon Australia. Check the size chart carefully and consider sizing up if you are between sizes.

The listing says these period pants are designed for super absorbency, holding up to 50 ml, about 10 tampons, which suits overnight wear and heavy flow days, and its title adds no visible panty lines. It is sold as a two pack. That seamless construction suits leggings or a fitted dress, and the stated capacity makes it a candidate for overnight use as well.

Note the fabric trade off. The fabric table shows the outer is 94 percent recycled nylon with 6 percent elastane, and the gusset top layer is polyester, so this is a synthetic against the skin. If the cotton outer was the appeal of the Mid-Rise pick, this is the opposite choice.

Flaws but not dealbreakers

The rating is the caution: 3.9 stars from 37 ratings is level with the INNERSY pack at the bottom of the ratings here. Sizing is the thing to check, so read the size chart against your measurements and consider sizing up if you are between sizes. A synthetic outer also feels different from the cotton picks.

Is the Walifrey Period Pants 2 Pack worth buying to build a rotation?

The Walifrey Period Pants 2 Pack is the volume play, with 4.1 stars from 1,566 ratings, the largest review base of any reusable pick here. The listing publishes no millilitre capacity, so treat it as light to moderate. One reviewer on the listing says they sized up to XL and still could not get into them.

The appeal is the rotation. A rotation only works if you own enough pairs to get through the days you need without washing daily, and a full rotation of Modibodi Supers is a bigger outlay than a multipack. A two pack starts a rotation and leaves room for one or two premium pairs for the nights that matter. The listing is a cotton knicker two pack with a leakproof crotch, its category rank sits under maternity underwear, and its product information states machine washable.

The listing title says heavy flow and extra protection, but it does not publish a capacity figure. There is no millilitre rating and no tampon equivalence, so you cannot compare it against the Modibodi or Bonds ladders. Treat it as light to moderate until you know otherwise, and do not make it your overnight solution on trust.

Flaws but not dealbreakers

Sizing is the problem to watch. One reviewer on the listing says they sized up to XL and still could not get into them, so consider ordering a size above your usual. The missing absorbency figure is the second caution. The listing says it is usually dispatched within 4 to 5 days and is marked non returnable due to product safety reasons.

Is the Whisper Super Absorbent Period Panty the answer when you cannot wash and dry?

Choose the Whisper Super Absorbent Period Panty when you cannot wash and dry. It is disposable, the listing says to discard after use, and it holds 4.5 stars from 8,080 ratings, the largest review base in this guide. Amazon files it under incontinence protective underwear and the directions are written for bladder control, so the packaging can read oddly.

A reusable pair needs rinsing and line drying, which is hard in a share house with one bathroom, on a camping trip, in a hotel with no balcony, on a long haul flight or in the first week after a baby. Six disposable pants solve exactly that window and leave nothing to launder. A pack in the suitcase alongside a rotation of reusables at home beats making one product do both jobs.

The size here is M to L, sold as six pants, and the listing notes an L to XL size is also available. Made by Procter and Gamble, it has a panty like fit, with the listing describing 360 degree leakage protection, full back coverage and a silky soft feel, in a cotton blend material. Because it is disposable rather than sized apparel, fit tolerance is wider than on the reusables, though not unlimited.

Flaws but not dealbreakers

This works as a travel and emergency product and not as your default, because it is single use. Amazon Australia files it under incontinence protective underwear rather than period care, and the listing directions say to discard after use and are written for individuals with bladder control issues, which can make the packaging confusing on arrival. It is sold by a third party and ships from Amazon, so check the size band before you buy.

Is the INNERSY Teen Girls' Cotton Period Underwear 3-Pack right for a first period at school?

For a first period at school, the INNERSY Teen Girls' Cotton Period Underwear 3-Pack is sized for ages 8 to 16 and rates 3.9 stars from 57 ratings. One reviewer describes the absorbent layer as very thin, so treat it as a school day safety net, with a pad inside it if needed, rather than your only protection.

The listing is a cotton menstrual brief for ages 8 to 16, sold as a three pack so there is always a clean pair in the drawer, and its product information states machine wash. The listing title promises extended leakproof protection and light daily backup, which is a modest claim, and it is marked non returnable due to product safety reasons.

The reservations are about capacity rather than quality. One reviewer says the absorbent layer is very thin, almost the same as normal underwear. That makes this a good safety net for the day a first period arrives at school unannounced, rather than a replacement for a pad.

Flaws but not dealbreakers

The listing states no millilitre capacity and no tampon equivalence, and given how thin one reviewer reports the lining, that omission matters more here than on the Walifrey multipack. Pair it with a pad on heavier days.

What should you look for in period underwear?

Start with the absorbency claim and check the units. A brand quoting millilitres gives you something comparable, while a label that says heavy tells you little. Bonds counts moderate as 3 tampons' worth and Modibodi counts moderate as 6, so compare the stated capacity first, then the gusset, the fabric against the skin, the cut and the sizing.

Then check the gusset. How wide the panel is, how far forward it starts and how far up the back it runs all affect where a pair can leak, so look for a listing that describes front to back coverage, as the Bonds listing does with its longer built in gusset. We have not tested leak patterns ourselves, so use the listing's own description of the panel as your guide.

Next, fibre against skin. An organic cotton outer, like the Modibodi Mid-Rise Brief, suits you if synthetics irritate, though check the gusset layer: this one is polyester. A viscose outer made from bamboo cellulose, like the Classic Full Brief Super, sits in between, with a merino wool layer on top of the gusset. A recycled nylon outer, like the seamless boyshort, suits fitted clothing but is a synthetic against the skin. There is no universally right answer, only a right answer for the outfit.

Then cut. A full brief gives more coverage and more room for a large panel, which is why the two picks here that state 50 ml are a full brief and a boyshort. A mid rise brief is the everyday compromise.

Finally, sizing. Sizing and fit questions come up on several of these listings, and fit is personal. Bonds describes its fit as designed to be snug and says to size up if you prefer a bit more wiggle room, while Modibodi's guidance is to stick with your usual size. If you are between sizes, take the larger one, and buy one or two pairs first.

Is there plus size period underwear in Australia?

Plus size options depend on the cut. The Modibodi Classic Full Brief Super listing carries a size chart that runs up to 6XL, and the variation we link is a 6XL. Check the chart against your measurements and size up if you are between sizes.

Bonds says its Bloody Comfy fit is designed to be snug and to size up for more room, so allow for that if you are shopping the Bonds range. We have not checked the size ranges of the other listings in this guide beyond what their titles state, so read each size chart before you order. The Modibodi, Bonds and INNERSY listings are all marked non returnable due to product safety reasons.

How do you choose period underwear for your flow?

Match absorbency to your flow. Use a light pair at the start and end of a cycle and a super or overnight style with a long gusset on heavy days. On Amazon Australia, the Modibodi Classic Full Brief Super states up to 50 ml and the Bonds moderate states 3 tampons' worth, so pick by the stated figure.

• Bonds ultra light: 1 tampon's worth on the ladder published on the Bonds listing.
• Bonds moderate: 3 tampons' worth, the rung the Bloody Comfy Full Brief Moderate sits on.
• Bonds heavy: 4 tampons' worth.
• Bonds overnight: 8 tampons' worth.
• Modibodi Mid-Rise Brief Moderate 30 ml: up to 30 ml, the equivalent of 6 tampons.
• Modibodi Classic Full Brief Super: up to 50 ml, about 10 tampons.

Brands set their own conversion, so a Bonds moderate and a Modibodi moderate are not the same capacity. For overnight use the stated figure matters more than the label.

How do you wash period underwear so it actually lasts?

Rinse in cold water until clear, then machine wash cold on a gentle cycle and line dry. The Modibodi Classic Full Brief Super listing says to rinse after use, and the Bonds listing says cold wash, line dry only, with no bleach and no fabric softener. Modibodi listings also say avoid tumble drying.

Machine wash cold on a gentle cycle after rinsing. Modibodi specifies cold and gentle, Bonds a cold wash. A mesh laundry bag is worth using, less for the fabric than for the elastic and seams.

Skip fabric softener and skip bleach. Bonds says so outright on its listing, and the Modibodi Mid-Rise listing says no fabric softeners or strong detergents. A layered garment is built to pull moisture through, and a coating from softener works against that.

Line dry, always. Bonds says line dry only, and the Modibodi listings say to hang to dry and avoid tumble drying. A dryer is a risk to the waterproof, breathable base layer, so skip the tumble dryer. A thick full brief can take more than a day to line dry in cooler weather.

Expect some marking over time. Rinsing promptly, as the Bonds listing (until the water runs clear) and the Modibodi Classic listing (after use) advise, is the first care step, and black fabric hides marking better than light colours.

What else will you want alongside your period undies?

A rotation beats a single pair, so a second or third style is the natural next buy. The Bonds Bloody Comfy Boyleg Brief Heavy below is the Heavy rung of the same Bonds Bloody Comfy range as our first pair to try, so it is an easy second pair if the brand suits you.

• Bonds Bloody Comfy Boyleg Brief Heavy, the Heavy rung of the same Bonds Bloody Comfy range.

A heating pad is the other thing worth having in the drawer for the same week. Drying matters as much as washing here. A covered line, a heated airer, or a bigger rotation all beat a tumble dryer, which the Modibodi listings tell you to avoid and the Bonds listing rules out with line dry only.

Which brands sell period underwear in Australia?

Modibodi and Bonds are the two brands we could check on Amazon Australia, because both publish an absorbency figure on the listing. Google's AI Overview also names Boody and Love Luna, and the Google results show Scarlet, Knicked and Fri Period sites. Those brands have their own websites, so we have not ranked them here.

The question to ask any brand is the same one this page keeps asking: how many millilitres, and does the brand publish the number at all.

What about period swimwear?

Period underwear and period swimwear are not the same product, and none of the seven listings here is sold as swimwear. We have not ranked swimwear in this guide because it belongs in a swimwear guide rather than an underwear one. If you want to swim on your period, check the swim style's own listing for what it covers.

Our swimwear guide covers the general fit questions.

What did we look at and leave out?

Several brands come up in Australian search that we did not rank, because we only compare Amazon Australia listings. Boody, Love Luna, Scarlet, Knicked and Fri Period all appear in the Google results we saved, and we have not checked their products or stockists. That is a real limitation of an Amazon based guide and we would rather say so.

Within Amazon Australia we passed on listings with only a handful of reviews, and on products that mention period underwear in the title but are ordinary cotton briefs with no absorbent layer.

The Bonds ladder rates its Overnight rung at 8 tampons' worth, which is the highest tampon equivalent on any Bonds listing we saved. We have not ranked that style here.

Period underwear questions Australian buyers actually ask

How many pairs of period underwear do you actually need?

Work backwards from drying time, not from your cycle. If a full brief takes a day and a half to line dry in cooler months and you want two pairs a day on heavy days, you need five or six pairs to avoid washing daily. Start with two pairs, see how the laundry maths works for you, and buy more.

Do period undies feel wet during the day?

The Modibodi Classic Full Brief Super listing describes a merino wool layer that helps wick moisture into an absorbent core, and the Bonds listing describes moisture wicking technology. How dry a pair feels depends on how close you sit to the stated capacity. If yours consistently feel saturated, step up an absorbency.

How long does period underwear take to dry on a clothes line?

A full brief with a layered core is slow to dry. The Modibodi and Bonds listings both say to hang or line dry, so plan on a full day or more on an indoor airer in cooler months, and own enough pairs that a slow dry never leaves you short.

Should you size up in period underwear?

If you are between sizes, yes. Bonds says on its listing that the fit is designed to be snug and to size up for more room, while Modibodi's guidance is to stick with your usual size. One reviewer on the Walifrey listing says they sized up to XL and still could not get into them, so check each size chart.

Is period underwear cheaper than pads and tampons?

It can be, because you wash a reusable pair instead of rebuying a disposable every cycle. The saving depends on how many pairs you need and how long they last. The upfront cost is a rotation of several pairs, and the brands warn against high heat, bleach and fabric softener, so follow the care label.

How many times can you wash period underwear?

None of the seven listings states a wash count we can quote. The Bonds and Modibodi listings say to wash cold, line dry and skip fabric softener, and the Modibodi Classic Full Brief Super listing adds a rinse after use. Heat, bleach and softener are the habits the brands warn against, so follow the care label.

Does period underwear contain PFAS?

None of the seven listings we compared says anything about PFAS, so we cannot confirm a PFAS free claim for them. OEKO-TEX Standard 100 is a textile testing standard for harmful substances, and it appears on the Modibodi Mid-Rise Brief and Classic Full Brief Super listings. Scarlet's page in the Google results is headed PFAS free and lab tested.

What is the top rated period underwear in Australia?

Our pick is the Modibodi Classic Full Brief Super, rated 4.6 from 72 ratings on Amazon Australia, because its listing states up to 50 ml, about 10 tampons. The Bonds Bloody Comfy Full Brief Moderate shares the 4.6 rating from 210 ratings but absorbs up to 3 tampons' worth, so it suits lighter days.

Can you swim in period underwear?

Not in any of the seven pairs here. None of these listings is sold as swimwear, so we do not recommend them for swimming. Period swimwear is a separate kind of product, and we have not ranked it in this guide. If you want to swim on your period, check the swim style's own listing for what it covers.

Where can you buy period underwear in Australia?

This guide covers Amazon Australia listings only, so we cannot confirm what shops or supermarkets stock. Check the label for a stated capacity in millilitres and compare it with the figures here. Boody and Scarlet have their own websites in the Google results we saved, and ChatGPT's saved answer links Love Luna's site, so you can buy those direct if you prefer them.

Is there plus size period underwear in Australia?

Plus size options depend on the cut. The Modibodi Classic Full Brief Super listing carries a size chart that runs up to 6XL, and the variation we link is a 6XL. Check the chart against your measurements and size up if you are between sizes.

How do you choose period underwear for your flow?

Match absorbency to your flow. Use a light pair at the start and end of a cycle and a super or overnight style with a long gusset on heavy days. On Amazon Australia, the Modibodi Classic Full Brief Super states up to 50 ml and the Bonds moderate states 3 tampons' worth, so pick by the stated figure.

What else should you sort out while you are here?

Period undies live or die by your laundry setup, so most of these pair with this one. The guides below include the everyday underwear that sits alongside these, a detergent that suits leakproof fabric, and a clothes airer for drying, which matters because the Modibodi listings say to hang to dry.

• Best women's underwear in Australia, for the everyday pairs that sit alongside these in the drawer.
• Best laundry detergent in Australia, and what to avoid on leakproof fabric.
• Best clothes airer in Australia, a practical buy for anyone drying period undies indoors.
• Best heated clothes airer in Australia, if you are in a cooler part of the country and drying is the bottleneck.
• Best washing machine in Australia, where a proper cold gentle cycle earns its keep.
• Best wardrobe organiser in Australia, for keeping a six pair rotation somewhere you can find it.
• Best silk pillowcase in Australia, another gentle wash item that suits a cooler wash.
• Our guide to the TENS machine for period pain, for relief alongside your period underwear.

About the author

Anish Puri founded NestPath in 2026 after going through the Australian first-home-buyer process himself. NestPath focuses on Australian first-home buyers because the existing review sites are American, generic, or both. Anish handles editorial selection across the homeowner hub. Reach out: hello@nestpath.com.au