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13 Best Underwear for Working Out (Chafe-Free Exercise)

Last Updated: November 22, 2021

We’ve all been there: working up a nice sweat at the gym (or at home) just to be hit with an irritating case of chafing. If you’re ready to upgrade your underwear game and ditch the red, painful rashes, we’ve rounded up the 13 best underwear for working out. 

We know how easy it is to throw on any pair of clean underwear to hit the gym in, but your undergarments should be on the top of your priority list when it comes to exercising. 

Nobody likes talking about chafing *down there,* but it’s actually more common than you think. Not all underwear is made alike, so it’s important to choose the right material when getting your sweat on. 

How to Choose the Best Workout Underwear

Let’s start with the basics. When choosing workout underwear, look for breathable and moisture-wicking materials. Spandex, polyester, and nylon will be your best friend. 

Cotton can work as well since it absorbs moisture, but it’s probably best to only wear cotton fabrics during light workouts. 

If you’re planning on working up a serious sweat, your cotton undies will get drenched fast, meaning an uncomfortable workout and a chance of yeast infections. 

Best Underwear for Working Out

Now that you know what materials to look out for, keep reading to find our recommendations for the best underwear for working out. We’ve broken them down into three categories based on coverage: best thongs, bikini-styles, and briefs (including a few options for men).

Best Thongs

Icebreaker Siren Thong

$28 – $33.80

This is one of the most highly-recommended thongs for working out.

It’s made out of 83% Merino wool, which might sound counterintuitive for working out. Some wool, however, is actually great for exercising. It’s naturally breathable for proper air circulation.

Lululemon Soft Breathable Thong


This super soft thong from Lululemon is breathable and moisture-wicking, aka perfect for working up a sweat.

It’s also made with Lycra® fibre for ultimate stretch and shape retention, meaning you don’t have to worry about your waistband digging in or your undies riding up!

Spandex Undie-Tectable Thong


If you’re looking for a workout thong that has a bit more support, this one will be your new go-to. It has a higher waist to keep everything in place, and smooth, elastic free edges for comfort. 

It’s made with nylon and a cotton gusset for extra comfort. This thong truly is undie-tectable.


Under Armour Pure Stretch Thong

$19.99 – $31.99

The best thing about this thong is probably it’s anti-odor technology. You can go hard during your workout sesh without worrying about odor when you’re in this underwear.

Plus, it’s made from soft stretch fabric for all day comfort, and has laser-cut, seamless edges to avoid any uncomfortable elastic digging in.

Best Bikini-Styles

Hanes Comfort Flex Fit Bikini Underwear


This budget-friendly bikini underwear is made with nylon, spandex, and polyester for the perfect stretch during any movement. 

It has a smoothing, flat waistband, and it’s tagless! You don’t have to worry about a pesky tag scratching you every time you take a step on the treadmill.

Amazon Essentials Seamless Bonded Stretch Bikini Underwear


This seamless bikini underwear from Amazon Essentials is another affordable option, with 4 in a pack.

The description claims a “hint” of stretch for a secure, yet comfortable fit. It allows movement while staying in place!

Uniqlo AIRism Ultra Seamless Bikini


If your main concern is air flow during your workout, you need this high-performance AIRism fabric for maximum comfort and air circulation

The nylon-and-spandex blend moves with you during your workout. Plus, they’re low rise so they won’t peak out over any leggings or workout pants. 

Third Love Comfort Stretch Bikini

$15 or 3 for $30

This moderate coverage bikini underwear from Third Love is all the rage. It’s stitch-free design makes for a barely-there feel, while the nylon and spandex combo gives amazing moisture-wicking comfort. 

Their sizes range from XS to 3X, so everyone can find their perfect fit.

Best Briefs

Lululemon Always in Motion Boxer Brief


This boxer brief from Lululemon is perfect for active men. They are form fitting without being restrictive, plus they’re breathable and quick-drying.

Made from a super smooth fabric called Modal fabric, you’ll have all day comfort no matter what activity you’re doing.

David Archy Ultra Soft Mesh Quick Dry Boxer Briefs

$22.99 – $26.99

If you’re looking for a more affordable boxer brief, this lightweight option from David Archy is made with ultimate movement abilities with its 3D pouch design. 

It’s quick drying and comes in three versions: Mesh-No Fly, Solid-No Fly, and Mesh-With Fly.

Sweaty Betty Barely There Briefs 


These no-show briefs are perfect for giving you comfort and coverage while working out. The seamless edges not only eliminate panty lines under leggings, they also help reduce chafing.

They’re made with sweat-wicking and 4-way stretch technology, giving you your most comfortable workout yet. Plus, they offer them in several different skin-toned colors so you don’t have to worry while wearing see-through leggings!

ExOfficio Give-N-Go Bikini Brief


Looking for underwear with super quick drying power? With their moisture-wicking mesh material, these briefs air dry within hours of being washed.

Not only do these briefs keep you dry during your workout, they also prevent any funky smells. They’ve been through an odor-reducing antimicrobial treatment to keep you fresh down there.

Aerie Real Me BoyBrief Underwear


Aerie provides the perfect lightweight, stretchy, boybrief underwear ideal for working out. 

Their Real Me fabric gives the stretch of your dreams and makes you feel as though you’re wearing nothing. They can sit higher or lower on your waist, according to your preference, and will stay in place through any workout!

RELATED: 23 Best Aerie Products to Get Your Comfy On

To Sum It Up

All in all, it’s fair to say that choosing the right underwear for working out is essential to keeping you cool, dry, and chafe-free. There are several brands that offer great options when it comes to covering your nether regions!

We hope this list helps you select your next best pair of underwear for working out!

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