10 Best Period Bikini Bottoms of 2025

Tested and Reviewed: Top 10 Period Bikini Bottoms deals with expert ratings from 8.1 to a perfect 10

March 2026 Edition

Editor's Choice

9.7

Beautikini

Beautikini Period Swimwear Bikini Menstrual Swim Bottoms Leakproof Bathing Suits for Teens Girl(Black Small)

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Editor's bottom line:

“This period bikini bottoms is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

Period Swimwear for Teens: Tailored to suit teenage girls, Beautikini period swimsuit comes with full coverage and mid-waist design for tummy control, providing both comfort and style during water activities.Please refer to the size chart before purchase.
High Absorbent&Leak-Proof: Period swimwear adopts a 4-layer design to prevent side leakage and rear leakage. Highly absorbent lining,can hold up to 3 tampons,when menstruation is heavy,disposable products can be used for extra protection.
Quick-Drying: Period swim bottoms built-in breathable PU film with water repellent treatment technology, breathable, quick-drying, comfortable, and durable,not easy to produce odor.
UPF 50+ & Chlorine-Resistant: The period bathing suits for teen girls feature UPF 50+ fabric with anti-chlorine treatment sun protection that blocks UV rays to help reduce harmful ultraviolet radiation.
Easy Care: Both hands and machine washable, soft fabric breathable and reusable, perfect for swimming, hiking, cycling, running, yoga, surfing or any outdoor activities.

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Picked by 397 people today

9.5

Leoparts

Leoparts Period Swimwear for Women Teens Black Leakproof Swim Bottoms High Waist Side Drawstring Menstrual Swimsuit Bottoms

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Main Highlights

Premium Material: Crafted from breathable, lightweight, and quick-drying fabric, this period swimwear ensures all-day comfort during swimming, beach outings, or water sports
Advanced Leakproof Protection: The built-in 4-layer gusset combines a waterproof outer layer and absorbent lining, offering reliable leakproof swim bottoms that prevent leaks during light to moderate menstrual flow
High Waist & Adjustable Side Drawstring: Designed with high-waisted and side drawstring for customizable fit, these period bikini bottoms provide modest support and secure, perfect for teens and women
Versatile Protection: Designed not just for period swimming, but also ideal for postpartum recovery and managing light bladder leaksyour worry-free solution for water
Inclusive Size Range: Our period swimsuit bottom comes in US sizes 3XS to 3XL, ensuring a perfect and comfortable fit for various body types

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9.5

OVRUNS

OVRUNS Period Swimwear Leakproof Bikini Brief Bottoms Waterproof Menstrual Swim Bottoms for Teens, Girls, Women Black II XS

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Main Highlights

Period Swim Bottoms Leakproof:These period bikini bottoms are designed for period postpartum light bladder leaks get all day confidence from leaks or stains while doing water activities, on vacation, camp, water parks, beach, and at the resort
Organic Absorbent liner Period Swim Bottom:OVRUNS women's period swim bottoms built in fast drying absorbent liner and can be worn with or without additional protection. No odors, no plastics and easy to wash
Period Bikini Bottom for Teens Girls Woman:Holds 10 ml of period flow or light leaks around 2 small tampons' worth, locking in the blood and preventing it from leaking. Replaces the need for disposable pads and tampons
Leakproof Waterproof and UPF 50 for much protection:These period swim short brief for women made from an innovative recycled fabric. Our aquaphobic fabric prevents water from passing through, keeping our from the pool or sea water
High Waist and Mid Waist Period Swim Bottom Offer Multi Choice:This flattering period bikini bottom features high rise waist, a thick, supportive waistband and full back coverage. Mid Waist as the regular bikini briefs

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9.2

Leovqn

Leovqn Period Swimwear Bikini Menstrual Leakproof Swim Bottoms UPF 50+ Waterproof Brief Light Flow for Women Girls Teens New Black

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Main Highlights

Built in Absorbency:Leovqn menstrual period swimwear built in comfor fast drying 100% absorbent organic cotton lining and leakproof layer which can holds up to 10 ml worth of protection. Our Period swimwear for women can be used alone on light and medium days, or as an extra layer of protection on heavy days to avoid leaks or stains when doing water activities
Waterproof and Leakproof:Swim Worry Free. Leovqn period swimwear made with waterproof fabric inside and outside. The high waist period bikini bottoms leakproof comfor layer design provides safe and enjoy swiming experience during period time, spotting, discharge or light bladder leaks
UPF 50+ and Chlorine Resistant:The period swim bottoms feature UPF 50+ fabric with sun protection that blocks UV rays to help reduce harmful ultraviolet radiation and prevent sunburn and skin damage; Plus Anti chlorine treated
No More Tampon:YES, you can swim without tampons! Period swimwear for teens can replace tampons, teaspoons , pads and menstrual cup, enjoy summer sunshine and water with relaxed wearing experience leovqn swim bottom now! experience leovqn swim bottom now
Enjoy a Good Swim: No leaks, no odor, no stains! The padding of the menstrual swim bottoms also absorbs odor, making it useful during menstruation, pregnancy, discharge, mild bladder leakage and postpartum. Wear leovqn period bikini bottoms now to enjoy surf, paddleboard or just sit down the sand enjoy sunshine all day without worryies

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9.0

Leoparts

Leoparts Period Swimwear Leakproof Bikini Bottoms Low Rise Swimuit Bottom Briefs for Teen Girls Women

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Main Highlights

Breathable and Quick-Dry Fabric: Made of 82% Nylon and 18% Spandex, the period swim bottom is breathable, lightweight and quick-dry. It will keep you comfortable during swimming and other water activities
Leakproof and Waterproof: The leakproof gussets are lined with absorbent material and water-repellent fabric, which provides absorbency and prevents leakages. Ideal for light to moderate flow days.
Flattering Bikini Cut: The bikini-style swim bottom hugs your body without visible bulk while looking like regular swimwear. Mix and match these low rise bikini bottoms with any bikini or swimsuit top.
Available in US size 3XS(00-0), XXS(0-2) XS(2-4), S(4-6), M(6-8), L(8-10), XL(10-12), XXL(12-14), 3XL(14-16). The period swimsuit bottom is machine washable in cold water. Do not use fabric softener which can damage the water resistance.
Use Occasions: Perfect for swimming, beach holidays, water sports, and daily use. It gives you total protection and freedom during menstruation so you can enjoy various activities.

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8.8

Leovqn

Leovqn Period Swimwear Leakproof Menstrual Bikini Waterproof Bottom UPF 50+ Swim Brief Light Flow - Teens Girls Women_Dark Black_S

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Main Highlights

No Tampons Required: YES, you can swim without tampons with leovqn period swim bottom! Our period swim brief for teens, girls and women can replace up to 2 tampons or 2 teaspoons, pads and menstrual cup worth of protection! Enjoy your summer vacation, swim pool and water activities NOW with stress-free and comfortable swim bottom. Swim Worry Free!
Absorbency and Leakproof: Our period bikini swim bottoms are built in fast drying, comfortable and 100% absorbent organic cotton and leakproof layer which can hold up to 10 ml around 2 tampons or 2 teaspoons worth of protection. Leovqn period swimwear can be used alone during light to moderate days to avoid leaks, stains and odors during water activities.
Waterproof Good for swimming: Leovqn period swimwear for teens, girls and women is made with water repellent fabric inside and outside for maximum protection during swimming and water activities. Stay dry, feel dry and keep dry in and out of water, enjoy your summer time and water now.
UPF 50 and Chlorine resistant: Our period swimwear is made with UPF 50 rated fabric inside and outside for superior sun protection plus with chlorine resistant technology added inside the fabric make it perfect protection during swim, surf, paddleboard, or just lay down the beach enjoy the sunshine all day without worries.
Light to Moderate Flow Protected: Leovqn period swimwear bottoms are Ideal for menstrual periods, pregnancy, spotting, discharge, light to moderate flow bladder leaks, good for postpartum, and even as elegant adult swim diapers.

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8.6

Leoparts

Leoparts Period Swimwear Leakproof Bikini Bottoms Black High Waisted Coverage Swimsuit Bottom for Girls Teens Women

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Main Highlights

Breathable and Quick-Dry Fabric: Made of 82% Nylon and 18% Spandex, the period bikini bottom is breathable, lightweight and quick-dry. It will keep you comfortable during swimming and other water activities.
Leakproof and Waterproof: The leakproof gussets are lined with absorbent material and water-repellent fabric, which provides absorbency and prevents leakages. Ideal for light to moderate flow days.
High Waist and Full Coverage: The high waisted style and full coverage of the swim bottom provide complete protection and support. It pairs well with bikinis, tankinis or can be worn alone.
Easy to Care: These reusable swim bottoms are hand washable and machine washable. Comes in US sizes 3XS(00-0), XXS(0-2) XS(2-4), S(4-6), M(6-8), L(8-10), XL(10-12), XXL(12-14), 3XL(14-16).
Use Occasions: Perfect for swimming, beach holidays, water sports, and daily use. It gives you total protection and freedom during menstruation so you can enjoy various activities.

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8.3

KNIX

KNIX Kt Leakproof Teen Period Swim Bikini Bottom - Bikini Bottom for Teens - UPF 50+ Fabric, Machine Washable - Black, Small

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Main Highlights

Medium Absorbency: absorbs about the same as 3-6 tsp, 1-1.5 regular pads, 2-3 super tampons, or 0.5-1 menstrual cups; ideal leakproof swimwear bottoms for moderate flow period days, as well as protection against light bladder leaks and sweat.
Full Butt Coverage: confidently wear and swim in your period swim bottoms without risk of period being seen, fully lined fabric with non-dig leg opening.
UPF 50+: protect your skin from the sun all day long with your menstrual swimwear bottom that is as thin as regular swimwear and does not swell in water.
Machine Washable: Machine Washable and Reusable with Knixs FreshFix Technology Gusset, containing 3 layers of performance fabric that keep you fresh and dry with rapid absorption.
About Kt by Knix: with 10+ years of experience, Knix's products are lab-tested and wear-tested. Knix was launched to to transform an underwear market that had too much frill and not enough function.

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8.1

SherryDC

SherryDC Women's Period Swimwear Bikini Bottoms-Menstrual Leakproof Swimsuit Bottoms Briefs for Teen Girl Black

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Main Highlights

82% Nylon 18% Spandex with breathable quick-dry leakproof gusset, durable and reusable.
Extended Leakproof linner. Unique quick-drying fabric has a highly absorbency.
Classic low rise bottom features moderate coverage, full Lining keep hygiene.
It will be better to wear with other extra protection when heavy flow. Easy to clean - hand or machine washable are both fine.
Provide the most intimate protection in sporty or water activities, such as gym, vacation camp, beach and pool swimming.

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8.1

OVRUNS

OVRUNS Period Swimwear Mid Waist Bikini Menstrual Leakproof Swim Bottoms Waterproof UV 50+ Light Flow for Teens Girls Women - Coal Black XS

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Main Highlights

Built-in Absorption - Our Period swimwear is made with built-in comfortable fast-drying absorbent liner to let you stay dry and relaxed during water activities for light flow around 10ml equals 2 tampons or 2 teaspoons.
Leak-Proof - No more accidents in the water during menstrual periods or light bladder leaks with our specially designed period swimwear. Perfect for menstrual periods, spotting, discharge, and light bladder leaks, period swimwear helps you reclaim your active life without compromise.
UV50+ Waterproof - With UV50+ rated fabric for superior sun protection plus waterproof inside and outside material, enjoy your summer, enjoy water freely :)
No Tampon Required - Say goodbye to uncomfortable tampons and hello to period swimwear that provides a comfortable and stress-free experience.
Swim Worry-Free - No swelling in water! With our period swimwear on, you can swim, surf, paddleboard or just lounge the sand all day without worries, making it the perfect addition to your vacation wardrobe.

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Our Best Overall Choice

Best Choice

9.7

Beautikini

Beautikini Period Swimwear Bikini Menstrual Swim Bottoms Leakproof Bathing Suits for Teens Girl(Black Small)

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Editor's bottom line:

“This is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

Period Swimwear for Teens: Tailored to suit teenage girls, Beautikini period swimsuit comes with full coverage and mid-waist design for tummy control, providing both comfort and style during water activities.Please refer to the size chart before purchase.
High Absorbent&Leak-Proof: Period swimwear adopts a 4-layer design to prevent side leakage and rear leakage. Highly absorbent lining,can hold up to 3 tampons,when menstruation is heavy,disposable products can be used for extra protection.
Quick-Drying: Period swim bottoms built-in breathable PU film with water repellent treatment technology, breathable, quick-drying, comfortable, and durable,not easy to produce odor.
UPF 50+ & Chlorine-Resistant: The period bathing suits for teen girls feature UPF 50+ fabric with anti-chlorine treatment sun protection that blocks UV rays to help reduce harmful ultraviolet radiation.
Easy Care: Both hands and machine washable, soft fabric breathable and reusable, perfect for swimming, hiking, cycling, running, yoga, surfing or any outdoor activities.

Show Price

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