The Best Period Swimwear of 2024, Tested and Reviewed by Experts
Feel confident on the beach — even during your period.
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Cancelling beach plans because of your period? Never again with period swimwear. Not everyone feels comfortable wearing a tampon or menstrual cup to swim, and if you have a heavy flow, you could still need some backup protection. Now, thanks to period swimsuits, you don't have to think twice about taking a dip. These innovative new swim styles are similar to period underwear, but they are specially designed to absorb menstrual flow and prevent leaks while you're in the water so you can feel comfortable and confident during your cycle.
In the Good Housekeeping Institute Textiles Lab, we test both menstrual products and the best swimsuits. In recent years, our analysts have tested over 50 menstrual products and have had over 200 testers try period products for real-user feedback. Our GH analysts have worn period swimwear themselves and have shared their thoughts on properties like style, construction, comfort and function. Using our expertise in menstrual products and swimwear, our Textiles Lab pros chose these period swimwear picks from top-performing brands with rave reviews from our testers or online reviewers and picks that they've tried themselves and love to wear.
Our top picks:
- Best Overall: Knix Leakproof Classic One-Piece
- Best Value: Savvi Wear Leakproof Bikini Bottoms
- Best Bikini: Ruby Love Period Swimwear Tank Set
- Best for Teens and Tweens: KT by Knix Period-Proof Sport One-Piece
- Best Low-Rise: Modibodi Swimwear Soft Stretch Brazilian Brief
Knix Leakproof Classic One-Piece
Pros
- Flattering maillot design
- Adjustable straps
- Options for larger cup sizes
Cons
- Some reviewers say removable cups are prone to folding
Knix's period products continue to outperform others in our Textiles Lab evaluations, and the brand's line of period swimwear is no exception. This comfortable swimsuit absorbs up to three tampons of menstrual flow for protection at the pool on even heavier days. Our testers were impressed with how flattering the traditional maillot one-piece suit is without any ruching details or extra compressive panels. The top has a built-in bra with removable cups for easy washing, but some reviewers say the removable cups are prone to folding during wear.
There are adjustable straps for a better, more secure fit, and the brand offers sizing for larger busts; standard sizes fit A to DD cups, while "+" sizes are designed for cup sizes E to G. If you're looking for a trendier style, the wrap one-piece suit is another popular option with a waist cutout and cute tie detail.
| Sizes | XS–XXXXL+ |
|---|---|
| Absorbency | About 3 tampons |
Savvi Wear Leakproof Bikini Bottoms
Pros
- Three color options
- Affordable price
- Classic design that's easy to style
Cons
- Limited sizing available
Starting at just $30, Savvi period swimwear is one of the most affordable styles we reviewed. These bottoms have a simple design that's easy to style with your favorite bikini or tankini top. The brand recently extended the leakproof gusset to offer more coverage and better protection.
Online reviewers were impressed with this pair's flattering fit and leakproof design. One said, "I have a very heavy flow and these swim bottoms did exactly as advertised; there [were] absolutely no accidental drips or anything!" Another reviewer who also gave five stars said, "No leaking, even after sitting on a white towel after getting out of the water."
| Sizes | XS–L |
|---|---|
| Absorbency | 3 tampons |
Ruby Love Period Swimwear Tank Set
Pros
- Adjustable ties for a better fit
- Made in the USA
- Four color options
Cons
- No returns, only exchanges
When it comes to period swimwear, Ruby Love has the most color, size and style options of any brand we've evaluated. The absorbent cotton liner has the capacity of three tampons, so you can feel comfortable wearing it without additional period protection. You can also add one of the brand's double-sided reusable pads into the gusset for even more security. According to the brand, they are made in the USA just like its swimwear and other period styles.
With an adjustable halter top and side ties on the bottom, this mid-rise bikini is customizable for your perfect fit. If you order the wrong size, Ruby Love offers size exchanges within 30 days (unworn and unwashed), but the brand won't accept returns.
| Sizes | XXS–3XL along with teen sizes |
|---|---|
| Absorbency | 3 tampons |
KT by Knix Period-Proof Sport One-Piece
KT by Knix Period-Proof Sport One-Piece
Pros
- Trendy colors and prints
- Supportive top for sports
- Fully-lined
Cons
- Some reviewers wish it had more rear coverage
Period swimwear is a great option for tweens and teens who may not be comfortable wearing tampons or menstrual cups. This sleek fully-lined one-piece swimsuit from KT by Knix is designed to be worn during swim meets but is stylish enough to wear on vacation. We appreciate the wider straps that cross in the back so they stay put while you swim and like that the top has a built-in elastic band at the chest for added support.
Online reviewers love the style of this suit, but some wish it had fuller bum coverage. The full collection of KT by Knix styles is designed specifically to fit teens, so be sure to review the brand's size chart before buying.
| Sizes | XXS–XXL |
|---|---|
| Absorbency | 3 tampons |
Modibodi Swimwear Soft Stretch Brazilian Brief
Pros
- Full-coverage style
- Matching tops available
- Discrete liner
Cons
- Lighter absorbency than other styles
No one would ever guess these low-rise, full-coverage bikini bottoms from Modibodi were period swimwear. Online reviewers say they feel just like regular bikini bottoms thanks to the super discrete liner that is not bulky, unlike some other period swimwear. We appreciate that this style uses regenerated nylon for a more sustainable buy. With the absorbency of just one to two tampons, these bottoms are best worn for shorter swims, lighter days or as backup with other period products. Pair them with a matching top from Modibodi's swimwear line, or coordinate it with a top already in your closet.
| Sizes | XS–3XL |
|---|---|
| Absorbency | 1–2 tampons |
Knix High Rise Leakproof Swim Bottom
Pros
- Comfortable cut
- Light compression
- Brand offers fit consultations
Cons
- Some testers found the horizontal seam unflattering
High-rise bikinis offer more coverage and security than traditional bikini bottoms. This style from Knix is made with a compressive nylon and spandex fabric that has smoothing four-way stretch, so it stays in place and feels comfy all day long. Reviewers love the brand's inclusive size range — XS to XXXXL — and the variety of other swimwear options. If you want some help with picking the right size and style, Knix offers free virtual fit consultations.
One GH analyst who has tried these bottoms was so wowed by the comfortable cut and leg openings that she opts to wear them even when she's not on her period, but some of our testers found the horizontal seam across the waist to be unflattering.
| Sizes | XS–XXXXL |
|---|---|
| Absorbency | About 3 tampons |
Beautikini Period Swimwear One Piece Leakproof Swimsuit
Beautikini Period Swimwear One Piece Leakproof Swimsuit
Pros
- Built-in racerback
- Six color options
- Full coverage, ideal for swim meets
Cons
- The brand recommends sizing up
Your period should be the last thing on your mind when headed to a swim meet or training session. When swimming for exercise, you need a snug suit that offers full coverage, so it stays put in the water. This Beautikini has everything you need in a training suit, plus added leakproof protection. It has a built-in racerback for support up top to minimize bounce. Online reviewers love this suit's chic design that's sold in six colorways. One said, "[This swimsuit] makes my daughter feel comfortable at swim practice!" Another added, "It is a really flattering suit, that is well-made and durable." The brand recommends sizing up for adults.
| Sizes | XXS–XL |
|---|---|
| Absorbency | 3 tampons |
Rosaseven Lingerie Alice Period Bathing Suit
Rosaseven Lingerie Alice Period Bathing Suit
Pros
- Adjustable cross straps
- High-quality material
- Fully-lined
Cons
- Extended shipping times
- Analysts are unable to verify antimicrobial claims
Instead of a basic scoop neck, this fully lined period swimsuit from Rosaseven Lingerie has a plunge neckline that our experts love. The straps can be adjusted for a better fit, and they cross in the back so they stay in place while you swim. The brand claims this swimsuit holds up to four tampons of menstrual flow, making it the most absorbent period swimsuit our experts have evaluated.
One analyst who has worn this style described the material as "thick with great stretch" and said it was higher quality than other swimsuits she's worn. However, she did share that the liner is more noticeable in this swimsuit than in other period suits, but she appreciates the security. The brand prides itself on making its swimsuits to order, so it can take up to six weeks to receive your suit after purchasing. Also, note that our Textiles Lab analysts were unable to validate the brand's antimicrobial claims.
| Sizes | XS–2XL |
|---|---|
| Absorbency | 4 tampons |
Scarlet Leakproof Period Surf-Short
Pros
- Trendy ribbed material
- Ideal for water sports
- More modest option
Cons
- Only available in black
Whether you prefer more modest bottoms or are planning to be active at the beach, a pair of swim shorts is a great option for additional coverage that stays in place while you lounge, surf or swim. They're only available in black, but they're made with a trendy ribbed material for a textured look. The liner has the absorbency of three tampons, making these shorts ideal to wear without other period products. You can also try the brand's high-rise, high-cut bottoms for less coverage on lighter days.
| Sizes | XS–2XL |
|---|---|
| Absorbency | 3 tampons |
How we chose the best period swimwear
At the Good Housekeeping Institute, our Textiles Lab pros analyze period products of all kinds, including tampons, pads, menstrual cups, discs and period underwear. Over the past few years, we have tested over 50 period products, rating each for properties including absorbency, fluid retention and even shedding. We've also shared period products with over 200 testers who have provided feedback on comfort, absorbency and fit.
Along with testing period products, our analysts regularly evaluate swimwear and have reviewed over 30 styles in our Lab, considering how well they hold up against multiple cycles in the wash, how well they keep their shape after being stretched and if the fabric can resist abrasion from rough surfaces like the sides of a concrete pool. We've also shared swim styles with testers and analysts who wear the swimsuits in their real lives and share their thoughts on style and appearance, as well as comfort and fit.
What to look for when shopping for the best period swimwear
Absorbency
Like other menstrual products, period swimwear is available with different absorbency levels. The listed absorbency level is how much menstrual flow the absorbent core can hold, but leaks are still possible (especially when moving around and going in and out of the water).
Style
Period swimwear is available in a variety of swim styles, including one-piece swimsuits, high-waisted bikinis and traditional tie bikinis. You should choose a style you like and feel comfortable in. Because period swimwear is still an emerging category, there are fewer styles and color options available compared to regular swimwear.
Sizing
With period swimwear and period underwear, a proper fit is crucial to prevent leaks. It should feel snug and secure to ensure it stays put. Our picks are available in a range of size options, from XXS–4XL as well as teen sizing too.
How does period swimwear work?
While it might look just like your favorite bathing suit from the outside, period swimwear has a hidden absorbent lining or gusset inside. The gussets are constructed with layers of material that absorb menstrual flow and keep it trapped in place. A hidden internal layer of the gusset tends to be waterproof or water-repellent to help prevent leaks while you swim.
Some period swimsuits are more absorbent than others, so be sure to review the swimsuit's absorbency before buying. Most period swimsuits can hold between two to three tampons of menstrual flow. Swimsuits with greater absorbency are ideal if you have a heavier period or are spending a long day at the pool. A swimsuit with less absorbency can be used as backup to other period products like tampons or menstrual cups, or you can wear it on days when your flow is light or spotting.
Can you wear a pad with period swimwear?
No, you shouldn't pair a pad with period swimwear. Like period underwear, period swimwear has a built-in absorbent core that acts like a menstrual pad to soak up menstrual flow. If you add a pad to your swimwear, it'll likely feel quite bulky and uncomfortable. Most menstrual pads have wings to secure them to your underwear, making the pad visible outside your swimsuit. For backup protection, you can use a tampon or menstrual cup while wearing period swimwear.
How do you care for period swimwear?
We recommend following the garment's care label to ensure it stays in great condition. High heat can damage spandex (which is a common swimwear material), so it's best to avoid high temperatures in the washer or dryer. To avoid staining your other clothes in the wash, we recommend rinsing the swimwear first before putting it in the washer.
How long can I wear period swimwear?
The swimwear's absorbency will help determine how long you can wear the swimsuit before you'll need to change. The brand will usually communicate the suit's absorbency in terms of tampons' worth of fluid. If you're using additional protection like a tampon or menstrual cup, you can wear period swimwear for longer. Avoid sitting in a wet bathing suit (period swimwear or regular!) for a long time as this can lead to yeast infections.
Why trust Good Housekeeping?
Emma Seymour is a senior textiles product analyst at the Good Housekeeping Institute. She’s been at GH for over five years, testing period underwear, tampons and menstrual cups in the Lab and coordinating with consumer testers. She has also covered swimwear content. With a degree in fiber science and apparel design from Cornell University, she has extensive research experience, particularly focused on athletic wear.
Amanda Constantine joined the Good Housekeeping Institute in 2022 as a home & apparel reviews analyst and has covered bathing suits for women over 50, slimming swimsuits and one-piece bathing suits and documented the recent tampon shortage. For this article, she used her relative expertise, adding input and picks from popular brands online or ones from brands that we've tested and been impressed by.
Emma Seymour (she/her) is a senior product analyst at the Good Housekeeping Institute's Textiles, Paper and Apparel Lab, where she has led testing for luggage, pillows, towels, tampons and more since 2018. She graduated from Cornell University with a bachelor of science in fiber science and apparel design and a minor in gerontology, completing research in the Body Scanner Lab on optimizing activewear for athletic performance.
Amanda (she/her) researches and reports on products in the Good Housekeeping Institute's Textiles, Paper & Apparel Lab, ranging from clothing and accessories to home furnishings. She holds undergraduate degrees in apparel merchandising and product development and advertising and marketing communications, as well as a master of science degree in consumer sciences from The Ohio State University. Prior to joining Good Housekeeping in 2022, Amanda was a lecturer for the fashion and retail studies program at Ohio State, where she taught fashion and textiles courses.
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