10 Of The Best Period Underwear That You Won’t Regret Buying!

_{*Price quoted in this article are all as of writing and may change anytime.}

Once a month most of us are left feeling cranky and crampy as our periods roll around and cause a big mess. We’re left having to deal with all sorts of period products just so that we can go about our day!

I have been a fan of period underwear and other eco-friendly menstrual products for a few years and I have never looked back. Modern period panties are nothing like the pieces of cloth my poor grandmother had to wear before disposables became widely available. Now, we can have the best of both worlds: avoid pads that will take 500 years to decompose and have period underwear that actually works!

Period underwear lets you skip messy, temporary products like tampons and pads and allows you an eco-friendly, simple solution for tackling your period.

If you’re going to get started with period underwear, however, it helps to know what brands are out there and what’s best for you. Let’s take a look at ten of the best brands of period underwear that you can invest in. 

Best Period Underwear 2024

Sensual Hi-Waist Bikini by ModiBodi

One of the top pairs of period panties on our list is the ModiBodi Sensual Hi-Waist Bikini. ModiBodi’s Hi-Waist Bikini comes in several different styles including a low-rise Boyleg style and a sexy French Cut edition. 

Either way, the Hi-Waist Bikini sits right on the hip. It’s designed for a higher leg and has a slimming appearance that can make women feel confident even with pesky period bloating. 

This pair of panties is perfect for women with any level of flow. This model comes in different absorbency levels and will take you from your light days to heavy flow and night-time safety. 

The panties come in both beige and black colours and are available in ten different sizes. Select a pair in XS all the way through 6XL to find the fit that works best for you.

Key Features	– Can absorb 1-10 teaspoons of fluid. – Comes in different absorbency levels that can handle light to super heavy period days. – Made out bamboo viscose, spandex, merino wool, polyester, and polyamide.
Sizes	XS, S, M, L, XL, 2XL, 3XL, 4XL, 5XL, 6XL
Colors	Black, 5 shades of Nude 20 Limited Edition Colors: Soft Petals, Buttercup, Peony, Misty Green, Daylight, Pink Sorbet, Peppermint, Flow Motion, Cerise, Twilight Navy, Winter Gardenia, Rosette, Smokeshow, Rose Bouquet, Amber, Work of Art, Vintage Plum, Sage, Sweet Spot, Brandy
Absorbency	Low to Heavy

Hiphugger Menstrual Underwear by Thinx

Thinx period panties are some of the most popular period underwear out there. The reason for this is that they have fantastic marketing campaigns but also that they live up to what they say they will. 

What’s great about Thinx Period Underwear is that it’s lab tested for absorbency. That way you know that you’re getting a product that really can hold up on heavy flow days and keep you covered when you’re out and about. 

Thinx underwear comes in different levels of absorbency as it can hold up to 3 tampons full of fluid. You can get this underwear in sizes XS all the way through size XXXXL, making it a great product no matter how big or small you are. 

These period panties are made out of polyamide, cotton, elastane, and polyester. To preserve the functionality of these panties, you’ll need to make sure you machine wash them on cold and lay them flat to dry. 

Thinx is not super cheap! However, if you purchase Thinx underwear and find you don’t like it, you can send it back as long as it’s in unused condition.

Key Features	– Can hold up to 3 tampons full of fluid. – Made out of polyamide, cotton, elastane, and polyester.
Sizes	XS, XXS, S, M, L, XL, 2XL, 3XL,
Colors	Black, Dusk, Beige, Pine, Crimson, Ocean
Absorbency	Low to Heavy

Leakproof Bikini by Knix

First up is the Leakproof Bikini by Knix. This period underwear has a breathable nylon and Lycra material that makes it feel as though you’re wearing regular underwear, rather than a pair of period panties. 

This period underwear is available in tons of fun colors and patterns as well as five nude skin tones. The pad on these is able to absorb up to 3 teaspoons of fluid, but it still feels sturdy enough that most reviewers wouldn’t mind wearing it on heavier days as long as they’re using a menstrual cup.

Knix’s Leakproof Bikini should be machine washed in cold water. The panties are made of nylon, lycra, spandex, cotton, carbon, and an inner polyester layer. All those fabrics mean you need to wash them gently in order to use them.  

You can get this pair of period panties in sizes XS all the way up to XXXXL. Plus, you’ll enjoy a lenient return policy that allows you to send them back, even after you’ve worn them, as long as they’re clean and washed. 

Leakproof bikini by Knix is also one of the most affordable period panties on the list.

Key Features	– Can absorb up to 3 teaspoons of fluid. – Recommended to be worn with menstrual cup on heavier days. – Made out of nylon, lycra, spandex, cotton, carbon, and an inner polyester layer.
Sizes	XS, S, M, L, XL, 2XL, 3XL, 4XL
Colors	Black, 5 shades of Nude 20 Limited Edition Colors: Soft Petals, Buttercup, Peony, Misty Green, Daylight, Pink Sorbet, Peppermint, Flow Motion, Cerise, Twilight Navy, Winter Gardenia, Rosette, Smokeshow, Rose Bouquet, Amber, Work of Art, Vintage Plum, Sage, Sweet Spot, Brandy
Absorbency	Different levels available

First Line Leakproof Bikini TomboyX

TomboyX is a brand of period panties that has a longer liner and a wider waistband than most period underwear. That makes them great for anyone who has a heavier flow but still wants to use period underwear. They are also an excellent choice for sleeping.

You can find TomboyX available in sizes 3XS to 6XL, making it one of the most inclusive period panties on our list. What’s great is that regardless of which size you use, you’ll still enjoy the same fantastic absorbency. 

Speaking of absorbency, these panties can hold up to 8 teaspoons of period blood. That’s ideal for a heavy flow or for using overnight. 

Another benefit of TomboyX is that they have gender-neutral options. You can select numerous different styles and find one that allows you to express yourself and stay comfortable on your period at the same time!

TomboyX Period Panties are made out of just two materials, cotton and spandex. To wash them, throw them in a mesh bag and place them in the washing machine. Let them dry on a clothesline overnight. 

If you decide you want to return the panties, you’ll enjoy free returns for first-time orders. After that, you can return your underwear unused and unwashed within the first month of your purchase. Either way, they are also pretty reasonably priced!

Key Features	– Can hold up to 8 teaspoons of period blood. – Made out of cotton and spandex.
Sizes	XXXS, XXS, XS, S, M, L, XL, 2XL, 3XL, 4XL, 5XL, 6XL
Colors	Black, Iron, Plum, Black X, Night Sky X, Plum X, Black Rainbow, Night Sky Rainbow, Plum Rainbow, Next Gen Black
Absorbency	High

Leakproof Thong by SAALT 

There’s no reason why you should be forced to wear granny panties on your period, and that’s what the experts at SAALT believed too. SAALT’s leakproof thong features silky materials and lace detailing that makes you feel sexy even while on your period. 

This pair of period panties has the advantage of feeling the same as everyday underwear. They feature a discreet liner that absorbs fluid and keeps you dry throughout the day while still being able to wear your favorite style of underwear. 

This thong is appropriate for light coverage only, holding about 2 light tampons full of fluid. Alternatively, for heavier days, you may use this with a tampon or a menstrual cup. In that case, the leakproof gusset acts like a liner.

SAALT has fewer sizing options – not unusual when it comes to thongs – only offering sizes XS through XXL. 

SAALT’s Leakproof Thong is made out of elastane, recycled polyester, lace, polyamide, spandex, and a PUL liner. To safely wash the panties, rinse them in cold water and then machine wash them on cold. 

There is no return portal for these panties which makes them a little tougher to tackle if your un into any issues. However, the company’s Period Bliss Guarantee states that you can get a replacement or refund if you’re not happy with your purchase. 

Key Features	– Can hold up to 2 tampons full of fluid. – Made out of e lastane, recycled polyester, lace, polyamide, spandex, and a PUL liner.
Sizes	XS, S, M, L, XL. 2XL
Colors	Volcanic Black, Quartz Blush, Pebble Grey, Rich Earth
Absorbency	Light

KT by Knix

Although these panties are a little pricier option, the three-pack, KT by Knix is the perfect choice for teens and tweens first periods. This pack of period panties includes a leakproof underwear for lighter days, a super absorbent undies for heavy ones, and sleep shorts. 

The wide range of styles makes them ideal for ladies who aren’t 100% used to having their periods yet and are just getting started. The styles range in offering moderate to full absorbency, with the sleep shorts being designed for overnight wear. 

You can buy these period panties in sizes XS all the way through XXL. If you purchase a pack and decide you don’t like it or need a bigger size, enjoy 30-day returns on worn products the first time you purchase. 

Key Features	– A period kit perfect for teens who just had their period. – Made out of nylon, Lycra, cotton, spandex, carbon, seaweed fiber, modal, polyester.
Sizes	2XS, XS, S, M, L, XL, 2XL
Colors	Black, Dusk, Beige, Pine, Crimson, Ocean
Absorbency	Light to Heavy

Sleep Shorts by Thinx

Sleeping on your period can feel like playing Russian Roulette. You never know when your pad or tampon will overflow and leave you with an emergency in the morning!

To help you put a stop to this issue, you can invest in a pair of Thinx sleep shorts. These sleep shorts are loose and flowy on the outside but have built-in underwear beneath their flowy exterior. 

Better yet, the interior underwear is super absorbent. It can handle up to five full tampons of fluid, making it ideal for overnight wear or for anyone who has an extra-heavy flow. 

Another great feature of these sleep shorts is that they’re extremely comfortable. The shorts are made out of modal, elastane, cotton, and polyester for an ultra-comfortable fabric that’s easy to move in at night. 

You can order these panties in sizes XS through 3XL. If you decide you need a bigger size, you’ll have up to 60 days to either exchange the underwear or get a refund.

Key Features	– Can hold up to 5 tampons full of fluid. – Made out of modal, elastane, cotton, and polyester.
Sizes	XS, S, M, L, X, XL, 2XL, 3XL, 4XL
Colors	Black, Grey
Absorbency	Super

Mesh Hipster Leakproof Underwear by Proof

You really can’t go wrong by investing in a pair of Proof Period Panties. These panties come in various styles, providing you with quite a few different absorbency rates. 

The mesh hipster style comes in super light styles that are appropriate for just ½ tampon of fluid as well as styles that can handle up to 5 tampons full of fluid. Plus, you can get these panties in sizes XS to 3XL, giving you even more options when it comes to size and styling. 

Proof’s panties fit like a second skin, and the mesh details make you feel sexy while you’re wearing them. They’re made out of a combination of cotton, nylon, spandex, polyester, and acrylate. 

If you run into any issues with your purchase, the company has a generous return policy. You can send your first order back within 60 days, even if it’s worn. On future purchases, you can send back unworn products within the first 30 days. 

Key Features	– Can hold up to 5 tampons full of fluid. – Made out of cotton, nylon, spandex, polyester, and acrylate.
Sizes	XS, S, M, L, XL, 2XL, 3XL
Colors	Black
Absorbency	Light to Heavy

Boxer Briefs by Aisle

One of the more unique types of period panties on this list is those found at Aisle. Aisle period underwear has a removable insert that soaks up your period as well as an absorbent liner. 

What’s unique about this underwear is that you can not only enjoy built-in period support but can also remove and rewash the pad inside the period. This helps add extra protection, making them great for girls with super heavy periods. 

When the liner is left in the panties, you can count on them to absorb more than 8 tampons full of fluid. When you remove the liner, these panties are appropriate for absorbing about four tampons worth of fluid. 

Another big benefit of these panties is that they’re available in sizes XS through 5XL, making them a fairly inclusive brand. And, you can return used first-time orders within 60 days or other orders unused within 30 days. 

These panties are made out of a custom blend of organic cotton, Tencel, spandex, recycled polyester, and TPU laminate. You can wash these with your regular laundry as long as you rinse them out first. 

Key Features	– Can hold up to 4-8 tampons full of fluid. – Made out of organic cotton, Tencel, spandex, recycled polyester, and TPU laminate.
Sizes	2XS, XS, S, M, L, XL, 2XL, 3XL, 4XL, 5XL
Colors	Black, Beet, Ginder Spice, Kelp Forest
Absorbency	Light to Heavy (with added pad)

Real Period Underwear by Aerie

Aerie is jumping on the period underwear train with their new line of Real Period Underwear. These panties are just like your favorite classic cotton briefs, making them a nice go-to for when Aunt Flow comes to visit. 

These panties don’t shrink or have any runoff when fluid hits the material, meaning you really can trust that they’re leakproof. They’ll hold up to 2 tampons full of fluid, making them great for moderate coverage. 

Aerie’s line of panties also comes in pretty inclusive sizes. Enjoy these panties in sizes XXS through XXL. And, if you need to trade up or down a size, you can enjoy free returns for unwashed and unworn products. 

These panties are made out of cotton, acrylic, polyester, and elastane. As such, make sure to put them in a laundry bag and wash them on cold when cleaning. The manufacturer also recommends pre-rinsing them in cold water before putting them through the machine. 

Key Features	– Can hold up to 2 tampons full of fluid. – Made out of cotton, acrylic, polyester, and elastane.
Sizes	XS, S, M, L, XL, 2XL
Colors	Black, Nude Printed
Absorbency	Medium

Super Leakproof Dreamshort by Knix

If you want a truly leakproof pair of period panties, Knix’s Super Leakproof Dreamshort is the perfect choice. These are great for girls who struggle with incontinence on their periods. 

These panties give you super heavy coverage making them great for heavy flows or overnight wear. These panties are designed to absorb pee, sweat, and period blood, making them great for several different uses.

Knix’s Dreamshort comes in sizes ranging from XS all the way through XXXL. They’re made out of nylon, spandex, seaweed, Modal, polyester, and PU film and contain four layers of material.

If you change your mind about these panties you can return them within 30 days. Best of all, you can return them used as long as they have been washed. 

Key Features	– Can hold up to 12 tampons full of fluid. – Made out of nylon, spandex, seaweed, Modal, polyester, and PU film.
Sizes	XS, 2XS, 2XS+, XS+, S, S+, M, M+, L, L+, XL, XL+, 2XL, 2XL+, 3XL, 3XL+, 4XL, 4XL+
Colors	Black, Dark Cherry
Absorbency	Super

Wondering which type of period undies is best for you? This infographic below might help:

Frequently Asked Questions

If after all that you’ve still got a few questions, don’t worry! Here are some answers to the most commonly asked questions about period underwear.

Are period panties worth the money?

Period panties are a great investment for anyone who wants to reduce their environmental impact and handle their period in a more comfortable way. While at first, they can take some getting used to, you’ll eventually find that period panties are definitely worth the money. 

What is the best brand of period panties?

Modibodi, Bonds, and Eco Period are the leading choices of period panties for most women. These brands offer a wide range of styles and sizes and are pretty generally leakproof.

Which period panties are best for teens?

Not all period underwear brands make sizes for teens, so if you’re looking for youth panties you might have to look a bit harder. Thinx, KT By Knix, and Modibodi all make period panties for teenagers and have great reviews for their products.

Last update on 2024-04-14 / Affiliate links / Images from Amazon Product Advertising API