The Best Cotton Period Products

Do leakproof underwear work? Watch the magic.

Yes! Saalt Wear period underwear and leakproof panties are designed to replace liners, pads, and tampons while leaving you feeling (magically) dry.

Premium Design. Comfortable Fit.

Periods. Bladder leaks. Overnight protection. Postpartum care.

The most comfortable leakproof period underwear that does it all, just like you.

Patent-pending gusset technology
Reusable & replaces hundreds of pads and liners
Worry-free backup to a tampon, cup or disc
Not treated with PFAS aka polyfluoroalkyl substances

Take good care of Saalt Wear leakproof underwear and it will take great care of you.

Rinse in cold water
Machine wash cold
Proudly hang dry

Do not use fabric softener or bleach to protect the tech | Do not iron

9/10 People Never Go Back

Kelsey R.

I am in love with these undies! I wore them on my heavier days for half a day, and they did a great job. No leaks, no stains! The fit was perfect; great for when you are wearing low rise pants.
Natalie E.

Is it weird that I was actually looking forward to my period to be able to rock these cute undies? Like lots of people said, these are cuter than a lot of my regular underwear and it's so nice to finally ditch the backup pad. Can't wait to get more in different colors to get me through period week!
Michelle C.

These are great! The period panties I've ordered from other brands feel like thin diapers mixed with granny panties. These are cute, they work, and I'm definitely going to buy more!
Lani D.

Love it!!! It's so soft and you wouldn't even know that it was a period panty. Will definitely purchase more & recommend to all my friends & family! I've already bought some for my teenager daughter.

Meet the collections

SEAMLESS

Sleek and super-stretchy for all of the freedom with none of the panty lines. Made with 4-way stretch fabric and luxe bonded seams that move with you. Second-skin fit glides so smoothly, you'll forget you're wearing anything.

Shop Seamless

COMFORT

The softest fabric to ever be used in period underwear. Made from soft-stretch TENCEL™️ Modal, aka dreamy soft fabric made from sustainably regenerated cellulose fiber that comes from renewable beech wood.

Shop Comfort

LACE & MESH

Strong, sustainable, stunning. "The Lamborghini of period underwear." -Katie Couric Media Beautifully designed in Paris. Each pair is made with an average of 3 post-consumer recycled water bottles to help clean up landfill- and ocean-bound plastic.

Shop Lace & Mesh

COTTON

Just like your favorite cotton tee, but for your booty. ;) Made of soft and breathable biodegradable natural cotton that is Standard 100 OEKO-TEX®️ Certified. This is a 3rd party certification verifying that this cotton fabric is free from a wide list of harmful chemicals.

Shop Cotton

Teen Nylon

Teen collection nylon body fabric is soft and lightweight, with lots of stretch so it moves with you and won't restrict or bind.

Shop Teen

hanky panky+ [powered by Saalt]

Saalt and Hanky Panky spent a year collaborating on the perfect pairing of lace and absorbent technology to build Hanky Panky’s first-ever confidence panty. Hanky Panky’s Signature Lace® is super-soft, stretches to move with your body, and never, ever binds or cuts in.

Shop Hanky Panky+

Saalt Wear FAQs

Is Cotton Period Underwear Suitable For Teens Or First-Time Users?

Starting reusable period care can feel like a big step, especially for teens and anyone trying a new routine for the first time. The right product should feel familiar, easy to use, and supportive from day one, so you can wear it confidently whether you’re managing a light period, using it as bladder leak underwear for small everyday leaks, or pairing it with your active days. Here is how cotton period underwear fits those who need it and works seamlessly as comfortable workout underwear, too.

A Familiar Feel For New Users

Cotton period underwear is designed to look and feel like the kind of underwear many teens already wear, which makes it a natural choice for a first experience. There are no bulky layers or complicated steps; just soft, comfortable sweat proof underwear with built-in protection. This familiarity helps first-time users feel confident and in control during what can otherwise be an overwhelming transition.

Gentle And Skin-Friendly Materials

Made from cotton, this underwear is ideal for those with sensitive skin. The fabric is never treated with PFAS, and no PFAS is used in the manufacturing process, ensuring the garment remains clean and safe for the body. That attention to material safety is especially important for young users who are still learning how their body reacts to period care products.

Simple Protection With A Subtle Design

Each pair includes a patented leakproof gusset that absorbs fluid while staying thin and dry to the touch. The design is minimal, quiet, and feels like wearing any other pair of cotton briefs or bikinis. That subtlety can help reduce anxiety about leaks and give teens the freedom to move through their day without distraction.

Easy To Use And Easy To Trust

There are no applicators, strings, or inserts to manage; you simply wear it like regular underwear. It’s especially helpful for school, after-school activities, or sleepovers where changing a pad or managing a tampon isn’t always convenient. With built-in support for light to moderate flow, this underwear becomes a reliable tool for learning personal care routines.

Do Breathable Cotton Period Panties Feel Bulky Or Stiff?

Comfort is one of the most important factors to consider when choosing period underwear, especially if you'll be wearing it all day. Cotton period underwear is designed to offer reliable leak protection without sacrificing softness or flexibility, which is also why some people choose similar styles as postpartum underwear for light bleeding and everyday support after birth. Here's how it feels and performs in everyday life.

Thin, High-Performance Gusset

Each pair features a patented leakproof gusset that feels impressively thin and dry against your skin. It absorbs menstrual flow efficiently without adding bulk, so the underwear still fits and looks like your everyday pair. Developed in-house, this gusset is designed to be one of the thinnest high-performing options available in reusable period underwear.

Soft, Natural Fabric

These breathable cotton period panties are made with cotton that feels naturally soft and gentle. The fabric flexes with your body and allows airflow, helping you stay comfortable through long hours of wear. It’s a great pick for sensitive skin or for anyone who prefers the clean feel of natural fibers.

Everyday Fit That Moves With You

Cotton period briefs and bikinis are shaped for a familiar, easy fit that follows your body’s movement. Without stiff padding or restrictive seams, they stay comfortable under leggings, jeans, or pajamas. The result is leakproof protection that feels so natural you may forget it’s even there.

Minimal Design Without Extra Layers

These breathable cotton period panties skip bulky inserts and stacked layers that can feel heavy or awkward. Instead, they use a streamlined build that delivers absorbency while keeping a smooth, low-profile silhouette. You get the protection you need in a clean, simple design that stays out of your way.

Can I Use Cotton Period Underwear On Light Flow Days?

Cotton period underwear works really well on light-flow days because it’s absorbent enough for spotting and small leaks while staying breathable. You get the feel of normal cotton underwear with a built-in layer that manages moisture, so you don’t have to think about changing liners. As long as you choose a light or regular absorbency pair and change if it feels saturated, it’s a comfy, low-fuss option.

Perfect For Spotting And Light Flow

On lighter cycle days, you usually don’t need heavy protection, and cotton period underwear is made for exactly that level of coverage. Light or regular absorbency styles handle spotting, start-of-period trickles, end-of-cycle flow, and even daily discharge without feeling bulky. They keep you dry and secure without requiring a pantyliner or backup product.

Comfort That Feels Like Regular Underwear

Cotton feels soft, breathable, and familiar against your skin, which makes it easy to forget you’re even wearing period protection. Because the absorbent layers are integrated, you won’t feel the shifting or bunching that can happen with pads. You can move through your day normally—walking, sitting, working out—while staying comfortable and protected.

Reusable And Easy To Wash

Using reusable underwear on light days cuts down on disposable waste, which adds up quickly over a full cycle. After wearing, a quick cold rinse helps release any fluid; then, you can machine wash on cold with your usual detergent. Hang drying helps maintain the elastic and absorbent properties of the layers for repeated use.

Great Backup For Menstrual Cups Or Discs

Light-absorbency underwear pairs nicely with cups or discs when you want a safety net for small leaks. It adds protection without extra bulk, so your setup still feels minimal and comfortable. This combo is especially helpful on heavy-to-light transition days when flow can be unpredictable.

How Do I Choose The Right Size For Cotton Period Underwear?

Choosing the correct size helps your cotton period underwear feel and perform its best. Because each collection fits a little differently, it's important to use the specific sizing guide created for the cotton styles. Here's what to keep in mind when finding your perfect fit:

Use The Cotton-Specific Size Chart

Start by checking the cotton-specific size chart for the brand you’re buying, since cotton lines can fit differently than other fabrics. Measure your waist and hips with a soft tape measure, then match the larger of the two numbers to the chart for the best coverage. If your measurements land in different sizes, prioritize hip size because it affects how well the gusset and absorbent layers sit against your body.

Know Your Fit Preference

Think about whether you like underwear to feel snug and secure or more relaxed and breathable. A slightly closer fit can improve leak protection because the absorbent area stays flush to your skin, while a looser fit may feel comfier for lounging or sleeping. If you’re between sizes, choose the smaller size for a supportive fit or the larger size if you’re sensitive to tight waistbands.

Expect Natural Stretch With Wear

Cotton period underwear usually softens and relaxes a bit after a few wears and washes. They should feel comfortably fitted at first, not painfully tight, because they’ll ease into your shape over time. This natural stretch is normal and helps the underwear stay comfy without becoming baggy or losing function.

Try One Pair First If You’re Unsure

If you’re not totally confident in the size, buy one pair first and wear-test it on a light day. Pay attention to how the waistband sits, whether the leg openings dig in, and if the absorbent area feels positioned correctly. Once you know what size feels right, you can confidently order more or grab a bundle without worrying about fit.

Can Cotton Period Underwear Replace Pads And Tampons Completely?

Cotton period underwear is thoughtfully designed to serve as a full replacement for disposable period products. With the right absorbency and fit, it offers day-to-night protection you can rely on. Here's how it supports a complete switch:

Choose The Right Absorbency For Your Flow

Cotton period underwear comes in several absorbency levels to support different stages of your cycle. Light and regular absorbencies are ideal for spotting or as backup with a cup or disc. For heavier days, the Cotton Sleep Short can absorb up to 10 tampons or 7 pads’ worth of flow.

Leakproof Protection You Can Count On

Each pair features a thin, high-performing gusset that locks in fluid and keeps moisture away from your skin. The patented technology provides reliable protection without the bulk of a pad. It helps prevent leaks during daily movement, sleep, and rest.

Comfortable Enough To Wear All Day

Made from breathable cotton, this underwear feels soft and natural on the body. There are no stiff layers or itchy seams; just comfort that lasts through your routine. It’s designed to feel like regular underwear, with the bonus of built-in protection.

Supports Cycle Confidence Anywhere

Cotton menstrual underwear is a dependable option for school, work, travel, and everything in between. It simplifies period care by removing the need to carry or change products throughout the day. You can focus on what matters instead of checking for leaks or timing bathroom breaks.

How Is Your Cotton Period Underwear More Sustainable Than Disposables?

Switching to reusable period products can significantly reduce environmental waste. Cotton period underwear is designed to support a more sustainable cycle without compromising comfort or performance. Here's how it helps lower your impact:

Reduces Single-Use Waste

Disposable pads and tampons create a large amount of landfill waste over time. Cotton menstrual underwear is reusable and built to last through scores of home launderings. Each pair replaces hundreds of single-use products across its lifespan.

Plastic Negative And Certified B Corp

The brand is certified plastic negative, which means every product sold funds the removal of plastic waste from the environment. As a Certified B Corporation, it meets rigorous standards for sustainability, ethical sourcing, and social impact. Choosing cotton period briefs supports cleaner practices across the entire supply chain.

No Harmful Finishes Or Treatments

The cotton fabric is never treated with PFAS or other toxic chemicals. Supply chains are carefully monitored to keep harmful substances out of your products and the environment. This keeps waterways cleaner and reduces exposure to long-lasting contaminants.

Simplifies Your Period With Fewer Products

Instead of stocking up on monthly boxes of pads or tampons, you can rely on a few well-designed pairs of cotton period underwear. This shift reduces packaging waste and lowers the environmental footprint of your cycle. It’s a long-term solution built for both your body and the planet.

90-Day Saalt Bliss Guarantee

Love it or we’ll make it right. Love your Saalt products, or you have 90 days to return or exchange them. Why? We know that learning to use reusables can take time, but we're here to help and cheer you to Saalt bliss. Your Saalt(isfaction) guaranteed.

Do good every wear.

Saalt is a B Corp. That means we use business as a force for good and give 1% of revenue to donate cups and period underwear for women and girls in need.

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Cotton

Meet the Saalt Wear Cotton Collection