12 Best Period Swimsuits

Let’s be real: your period showing up right before a beach trip is a special kind of cosmic joke. For years, my options were either a.) sitting on the sidelines wrapped in a towel like a sad, hot burrito, or b.) praying to the tampon gods that nothing…leaks. It’s 2026, people. We have better options.

Enter: the best period bathing suits. I’m talking about menstrual swimwear that looks and feels just like your favorite bikini or one-piece, but with secret, built-in layers that absorb your flow. No pads, no tampons, no problem.

So I hit the pool, the beach, and even my friend’s questionable inflatable hot tub to test out all the leak proof swimsuits I could find. After many, *many* laps and cannonballs, these are the ones that actually work, keeping you confident and totally leak-free.

 

 

Our Absolute Fave Period Swimsuits

Knix Leakproof Classic One Piece Swimsuit

At $118, this one-piece is an investment, but it’s hands-down the best for all-day swimming on a heavier flow day. Knix seriously outperforms everyone else in lab tests, and I can confirm it holds up IRL. It absorbs up to three tampons’ worth of blood, which is just…wild.

I loved the super flattering fit and adjustable straps. And the built-in shelf bra meant I felt supported without that squished feeling some suits give you. It’s the one I reached for when I wanted to feel 100% secure.

The Downside: The removable cups get folded up in the wash literally every time, which is a minor but consistent annoyance.

 

 

Savvi Wear Leakproof High Waisted Bikini Bottoms

Finding a quality pair of period swim bottoms for just $29 is a huge win. These Savvi Wear bottoms are my go-to for a budget-friendly pick that doesn’t skimp on performance. I wore these for hours at a pool party and experienced zero leaks.

The high-rise fit is also a dream for bloating days, giving you that little bit of extra coverage and support right where you want it. Plus, the bamboo charcoal liner is surprisingly quick-drying, so you don’t feel soggy when you get out.

The Downside: These are definitely best for your light-to-moderate flow days, not the super heavy ones.

 

 

KT by Knix Leakproof Sport One-Piece

Okay, this $88 suit from Knix’s teen line is perfect for anyone who’s super active in the water. Think swim practice, jumping off the diving board, or attempting to surf. The racerback style is so secure and I never had to worry about a strap slipping.

It’s got that cool, sporty vibe that works for a swim meet or just hanging out on vacation. Honestly, it’s so comfortable and reliable that I’d wear it even when I don’t have my period.

The Downside: The bum coverage is more on the medium side, so if you prefer full coverage, this might not be your jam.

 

 

Knix Leakproof Deep V One Piece Swimsuit

Who said period swimwear has to be boring? This $118 number from Knix is genuinely sexy. The plunging V-neck is a major confidence booster when you’re feeling kinda blah, and it made me feel amazing.

Despite the daring neckline, everything felt totally secure and held in place. It’s easily the most stylish period swimsuit I’ve ever worn, and a ton of reviewers agree it’s the comfiest one-piece they own, period or not.

The Downside: It’s on the pricier side, for sure.

 

 

Beautikini Period Racerback One-Piece Swimsuit

For $60, this is the suit for my competitive swimmers out there. It has a snug, full-coverage fit that’s made for actual exercise, not just lounging. The wide straps and racerback design mean nothing is moving, no matter how intense your workout gets.

The four-layer tech provides seriously reliable leak protection, so you can focus on your form instead of worrying about accidents. It’s a functional, no-fuss suit that does its job perfectly.

The Downside: While it comes in a bunch of colors, the style itself is pretty basic and sporty.

 

 

WUKA Period Swimsuit Light/Medium Flow

This $65 swimsuit scored top marks across the board. It’s super absorbent, ridiculously comfortable, and looks just like a regular swimsuit. I was so impressed with how discreet the protective gusset is—no bulkiness at all.

It’s also a great option if you have a larger bust, because the material is soft but really supportive. It held up to all my tests with zero leaks and dried way faster than I expected.

The Downside: The color selection is pretty limited.

 

 

ModiBodi Swimwear Bikini Bottom Light

I love a good mix-and-match moment, and these $28 bikini bottoms from ModiBodi are perfect for that. They have a classic, mid-rise fit that’s super flattering and easy to pair with any top you already own.

The lining is incredibly thin, so you don’t feel like you’re wearing a diaper, but it still gives you all the confidence you need on a lighter day. They perform exactly as promised without feeling bulky.

The Downside: Don’t even think about wearing these on a heavy flow day—they’re strictly for light spotting.

 

 

Ruby Love Period Swimwear Racerback One Piece

If your flow is heavy and you’re not willing to take *any* chances, this $140 suit from Ruby Love is your girl. It’s built for maximum absorption and protects against leaks and stains, so you can truly just forget you have your period.

This is the suit you wear when you want to go to a water park or spend the entire day at the beach without a single worry. It’s the ultimate peace of mind.

The Downside: It comes with a premium price tag.

 

 

Knix Leakproof High-Rise Swim Bottoms

These $55 bottoms are a godsend for period bloating. The sculpting waistband is just compressive enough to be flattering and supportive without feeling restrictive. Plus, the high-cut leg is very chic.

They’re designed to absorb the equivalent of one tampon, making them perfect for your lighter days or as a backup for a menstrual cup. I loved pairing them with different bikini tops for a custom look.

The Downside: The absorbency is light, so you can’t rely on these for your entire period.

 

 

WUKA Period Swim Bikini Bottoms

These $40 bikini bottoms were another winner for comfort and absorbency. They seriously feel just like regular swim bottoms, but with an extra-long gusset that keeps you feeling secure.

The stretchy, breathable material is great for a long pool day, and they hold up to two and a half tampons’ worth, which is impressive for bikini bottoms. No leaks, no stress.

The Downside: A few reviews mentioned that the sizing can run a little small, so you might want to size up.

 

 

Ruby Love Classic Period Swim Bottom

At $90, these bottoms are another powerhouse option for heavy protection. The built-in liner can handle a substantial flow, letting you swim, splash, and play without a second thought. I felt totally confident wearing these on day two of my cycle.

They offer great coverage and can be paired with any swim top you have, making them a super versatile addition to your summer wardrobe.

The Downside: For your absolute heaviest moments, you might want to pair them with a tampon for extra backup.

 

 

ModiBodi Period Swimwear One Piece

This $70 one-piece is a fantastic everyday option for lighter period swims. It’s one of those suits that makes you think, “Why didn’t I try this sooner?” It just feels…normal. Like any other cute swimsuit you’d own.

The patented lining is super slim and discreet, but it does the job of keeping you protected and dry. And because it dries so fast, it’s perfect for bouncing between the water and your lounge chair.

The Downside: It’s only designed for light to moderate flows, so it’s not the one for heavy days.

 

 

What to Look For in Period Swimwear

First thing’s first: absorbency. Check how many tampons’ worth of flow the suit can handle. Brands are usually upfront about this, offering options for light, moderate, and heavy days. Be honest with yourself about your flow before you buy.

Next, consider the style. You don’t have to sacrifice your personal taste! Whether you love a sporty one-piece, a high-waisted bikini, or a cheeky bottom, there’s a period-proof option for you. The goal is to find something that makes you feel confident and comfortable.

And finally, trust the tech. These suits use multiple layers of fabric—usually a moisture-wicking top layer, an absorbent core, and a waterproof outer layer. It sounds like a lot, but I promise the good ones are totally seamless and not bulky at all. Go live your best mermaid life.