It stays in place, legit feels like it’s a part of your body, and doesn’t poke or dig in.
Protective Cool
Crafted from silky, high-performance fabric designed to wick away heat and moisture, these shorts keep you feeling fresh and dry all day. Perfect for every adventure!
Not a shapewear
Our shorts are designed for ultimate comfort—no compression or shapewear feel here. Lightweight, breathable, and sweat-wicking, they’re the go-to essential you’ll love wearing on repeat.
Cooling technology
Crafted from advanced fabric designed to lower body temperature, these shorts are a true innovation. (For the science enthusiasts: the yarn's flat cross-section creates a wide surface area that rapidly releases body heat.) The texturizing process enhances breathability, while the ultra-thin, lightweight fabric makes them as refreshing to wear as a cool breeze.
As Seen In
"The Boyshorts are soft, stretchy, and reduce friction between your thighs."
"So many reviewers are calling it their "new favorite bra""
"The Bra is a feminine, comfortable bra that enhances your natural shape"
"Very few brands offer such a long period for returns or exchanges"
"Got them Monday. It's Friday. I've worn them three times."
"The Boyshorts are soft, stretchy, and reduce friction between your thighs."
"So many reviewers are calling it their "new favorite bra""
"The Bra is a feminine, comfortable bra that enhances your natural shape"
"Very few brands offer such a long period for returns or exchanges"
"Got them Monday. It's Friday. I've worn them three times."
A tip:
TRY AT HOME for 180 days
Try it on,
wash it,
Try it again. Repeat.
Don't like it? Return it.
Since you get free exchanges and free returns for 180 days, why not try it out at home? At your comfort.
You can order two different sizes or even a few colors to try at home. If you don't like it or it doesn't fit well, just send it back or exchange it for another size... It's free, and Underoutfit pays for the shipping too.
5", 6" , 7" Inseam
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Customer Reviews
30+
Years of
Expertise
Expertise
Trusted by over 2 million women worldwide.
★ 4.8 Most LovedWhy the 362
362 Cooling Thigh Protectors 6"
Stops friction. Kills the heat. Disappears under any outfit.
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Flat-Fiber Cooling Architecture
The 80% nylon flat-fiber weave physically moves sweat away from skin — it doesn’t absorb and hold it. Body heat escapes faster than it builds.
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Zero Compression
No panels. No shaping bones. No sausage-casing sensation. These are engineered to eliminate friction and dissipate heat — not to squeeze.
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Stays Put All Day
The 80/20 nylon-spandex construction recovers its shape after every stretch. Wear them under a dress for a full day without adjusting once.
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Invisible Under Any Outfit
Ultra-thin lightweight fabric and flat-seam construction are specifically designed to be invisible under fitted clothing — even through thin summer dresses.
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S Through 3X
Built for real bodies. Six sizes, four colors. Order two sizes if you’re between fits — Underoutfit pays return shipping both ways.
Real Women, Real Results
★★★★★
Wore them for 9 hours straight. Forgot I had them on.
“I’ve tried every anti-chafe solution out there — powders, bands, compression shorts. The 362 is the first one that actually feels like nothing. Cool, smooth, and stayed in place all day at a summer wedding. I ordered three more pairs the next morning.”
★★★★★
Finally — not a shapewear in disguise
“Every other option I’ve tried either rolls up or squeezes me like a sausage. These do neither. They’re light, they breathe, and they’re invisible under my dresses. This is what thigh protectors are supposed to feel like.”
★★★★★
The cooling is real
“I was skeptical about the ‘cooling’ claim but it’s genuinely different. Wore these on a 90-degree day and my thighs were actually comfortable. The fabric feels silky and doesn’t bunch or shift. I’m a convert.”
Our Promise
Try It at Home.
Risk Free.
Wear them. Wash them. Wear them again. If they’re not the best thigh protectors you’ve tried — send them back free. No time limit, no questions asked. Underoutfit pays return shipping both ways.
180
Days to Decide
Free returns • Free exchanges • We pay shipping
What Makes It Different
362 Cooling Thigh Protectors 6"
Stops friction. Kills the heat. Disappears under any outfit.
01
Cools Down As You Heat Up
The 80% nylon construction is built around a silky-smooth weave that physically moves sweat away from skin — it doesn’t just absorb it and hold it. Wear them on your morning commute, a summer wedding, or a nine-hour travel day. They work the same at hour one as at hour nine.
Flat-Fiber Cooling Technology
02
The Opposite of Spanx — By Design
No compression panels. No shaping bones. No sausage-casing sensation. These are thigh protectors engineered to disappear under any outfit — light enough that you forget you’re wearing them, smooth enough that nothing shows through. The 20% spandex is for stretch and recovery, not squeezing.
Zero-Compression Construction
03
Flat-Fiber Architecture: The Engineering Behind Why These Actually Cool
Most fabrics trap a layer of warm air against your skin. The 362 uses a yarn with a flat cross-section — a wider surface area means body heat escapes faster than it builds. The texturizing process opens up the weave so air circulates through the fabric, not just around it. This isn’t a marketing claim. It’s the structural reason the fabric works — and why regular nylon shorts don’t do the same thing.
Engineered BreathabilityThe 362 Difference
Two Problems. One Solution.
Most anti-chafe shorts solve the friction. The 362 solves both.
Friction-Free
Silky-smooth flat-fiber surface eliminates inner-thigh chafe from the first step to the last.
Actively Cooling
Flat-fiber architecture releases body heat as fast as you generate it. No trapped warmth. No sweat buildup.
Press & Media
As Seen In
Underoutfit lets you return or exchange its underwear for 180 days.
The Boyshorts are soft, stretchy, and reduce friction between your thighs.
So comfy you forget you’re wearing them.
The Bra is a feminine, comfortable bra that enhances your natural shape.
So many reviewers are calling it their “new favorite bra.”
Very few brands offer such a long period for returns or exchanges.
Lifts, smoothes and supports — and feels buttery-soft.