Judy, 66
"I wore them under a cotton sundress to my niece's wedding. Seven hours, a lot of dancing, and I never once thought about my thighs."
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Buy 3, Get 3 Free TodayLove Them Or They're Free
FrostKnit™ Invisible Boxer Shorts
7-inch leg · worn on its own
Light Dresses, AnywhereTrips, cruises, hot days. One thin layer.
Feels Like NothingSo thin you forget it's on.
Invisible Under Any DressNo seam down the middle.
Worn On Its OwnBuilt-in gusset. No panties underneath.
Nothing like the tops of tights: an ultra-soft knit so thin you forget it's on, no seam down the middle, a 7" leg, and a built-in gusset, so they're worn on their own under a dress or a skirt.
Size Chart
Use your hips (measure around the fullest part) and your waist (natural waist).
| Size | Hips | Waist |
|---|---|---|
| S | 36.2–38.2 in92–97 cm | 23.6–27.6 in60–70 cm |
| M | 38.2–40.2 in97–102 cm | 28–29.5 in71–75 cm |
| L | 40.2–42.1 in102–107 cm | 29.9–31.5 in76–80 cm |
| XL | 42.1–44.1 in107–112 cm | 31.9–33.5 in81–85 cm |
| 2XL | 44.1–46.1 in112–117 cm | 33.9–35.4 in86–90 cm |
| 3XL | 46.1–48 in117–122 cm | 35.8–37.4 in91–95 cm |
Find your size
Between two sizes, or hips and waist give two sizes? Take the larger one. The leg is 7 inches on every size.
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Why They Feel Like Nothing
FrostKnit™ knitUltra-soft and so thin you forget it's on.
No-Line Edge™No seam down the middle, none at the sides.
StayPut Leg™ 7"Long enough to cover where thighs meet.
Built-in gussetWorn on their own. Nothing underneath.
Trusted by 125,000+ women
99-Day Perfect Fit Guarantee
Wear them for 99 days. Wash them. Take them on the trip. Wrong size, or not the pair for you? Get a new size or a full refund. No photo, no questions.
FrostKnit™ Invisible Shorts: The Details
Most anti-chafe shorts are knitted like the top of a pair of tights: thick, a seam down the middle, a squeeze at the waist. FrostKnit™ is the opposite: one ultra-soft knit, so thin you forget it's on.
Details:
- FrostKnit™ knit — ultra-soft, ultra-thin (82% nylon, 18% spandex)
- No-Line Edge™ — no seam down the middle, no side seams
- StayPut Leg™ 7" — long enough to cover where thighs meet
- Built-in gusset — worn on its own
- Waistband — wide, soft knit that lies flat
- Sizes S to 3XL — by hips and waist (S hips 36–38 in, waist 24–28 in … 3XL hips 46–48 in, waist 36–37 in). Between two sizes? Take the larger one
- 4 colors — nude, black, mocha, sand
99-Day Perfect Fit Guarantee
About our guarantee Wear them for 99 days. Wash them. Take them on the trip. Wrong size, or not the pair for you? Get a new size or a full refund. No photo, no questions.
Customer email: support@nuukeunderwear.com
Fabric & Care
FrostKnit™ is an ultra-soft, ultra-thin knit: 82% nylon, 18% spandex. No seam down the middle, none at the sides.
Machine wash cold on gentle, inside a laundry bag. Lay flat to dry. No bleach, no fabric softener.
Free Returns & Exchanges
Orders ship within 24/48 hours with tracking, and arrive in 6–12 business days. Wrong size? We swap it free within 99 days. Not for you? Full refund, no questions asked.
As featured in
"The thinnest anti-chafe shorts we have tried under a summer dress."
"Finally, shorts that stop the rubbing without feeling like tights."
"The quiet comfort brand women over 55 are switching to."
What women say after one week
Real women, real dresses, nothing rubbing.
Bonnie, 61
"My old anti-chafe shorts felt like the top of a pair of tights. These are so thin I checked twice that I'd put them on."
Gwen, 70
"No line under my striped dress, even sitting on the boardwalk in full sun. I took the 3 pairs in nude and went back for black."
Susan, 64
"I walk the dog every morning in a long tee and these. Nothing rubs, nothing bunches up, and they stay where I put them."
Janet, 68
"Took the 3XL, they hug without squeezing. A bit long on me at 5'1", but they stay put and nothing rubs on hot days."
Diane, 59
"Packed three pairs for a cruise. Deck, dinner, the long walk back to the cabin. Nothing rubbed."
Irene, 72
"No seam down the middle, and I can feel the difference. Soft, thin, I forget they're there."
Sound familiar?
Not tights.
Most anti-chafe shorts are knitted like the top of a pair of tights.
- Thick. Hot against the skin from morning to night.
- A seam down the middle that shows through anything that skims.
- A squeeze at the waist, like the top of a pair of tights.
That's why they feel hot by noon, and why the seam shows through a dress that skims. FrostKnit™ is the opposite: one ultra-soft knit, so thin you forget it's on, with no seam down the middle.
The Tights-Material Trap
Why they feel like nothing
It was never the heat. It was the tights material. It takes all four.
1
FrostKnit™ knit
So thin, nothing to feel
Ultra-soft and so thin you forget it's on, so there's nothing to feel by noon.
2
No-Line Edge™
Nothing shows through a dress
No seam down the middle and none at the sides, so nothing shows through a dress.
3
StayPut Leg™ 7"
Covers where thighs meet
A leg long enough to cover where thighs meet, so they stop rubbing. Thin without the 7" leg still rubs.
4
Built-in gusset
Worn on their own
The gusset is built in. Nothing underneath. Anything you wear underneath is one more layer.
Wear them when…
The thinnest pair, for the hottest days and the thinnest dresses.
The trip to the sun
Six dresses in the suitcase, and one thing to wear under all of them.
The cruise
Deck, dinner, the walk back to the cabin, in a dress the whole day.
The 85° October afternoon
For everyone who still lives in dresses after Labor Day.
The holiday party in a warm room
The velvet dress, without the tights feeling.
Sunday in a skirt
Sitting, standing, walking to the car.
The long walk
A dress, comfortable shoes, nothing rubbing.
A gust of wind on the boardwalk? Let it blow. You're covered.
So thin you forget it's on.
That's how thin it is. And with no seam down the middle, there's no line to show, even under a dress that skims.
Ultra-thinNo middle seam7-inch leg
Get my 6 pairsBuy 3, get 3 free
Worn on their own. Nothing underneath.
- Just the shorts, then the dress. The gusset is built in.
- A 7-inch leg, long enough to cover where thighs meet.
- No seam down the middle, none at the sides. No line to show.
The real benefits of Nuuke
94 %
forgot they had them on by lunch
96 %
felt no rubbing between the thighs all day
91 %
say no line showed under a thin dress
Nuuke vs. the rest
Why women are putting away their old anti-chafe shorts.
 | Other shorts | Bike shorts | |
|---|---|---|---|
| Ultra-thin knit | ✓ | ✕ | ✕ |
| No seam down the middle | ✓ | ✕ | ✕ |
| Covers where thighs meet | ✓ | ~ | ✓ |
| Worn on its own | ✓ | ✕ | ✕ |
| Waistband that lies flat | ✓ | ~ | ~ |
| No line under a thin dress | ✓ | ✕ | ✕ |
| Cool to the touch | ✓ | ✕ | ✕ |
| 99-day money-back guarantee | ✓ | ✕ | ✕ |
Don't take our word for it
"I forgot I had them on."
Three pairs rolled in my bag for a week at my sister's. I wore them every single day under my sundresses. Nothing rubbed, and nothing showed.
Paula G., 67 · Bought 3 pairs
"Not tights. Finally."
Every anti-chafe short I owned felt thick by lunch. These are thin enough to roll into my purse, and they stay put on the park bench and on the walk home.
Helen R., 62 · Wears the nude pair
Customer reviews
4.8
Based on 2,776 reviews
So thin!
Under a thin cotton dress all afternoon, no line and no rubbing.
Worn on their own
Didn't believe I could skip underwear underneath. The gusset is built in, it works.
Great for travel
Rolled three pairs in my carry-on. Weighs nothing.
Stayed put sitting down
Sat through a two-hour concert on a hot evening. Still flat, still in place.
No middle seam
That seam was what bothered me on every other pair. Gone.
The Nuuke promise
99-day money-back
Wear them for three months. Love them or get a full refund.
Free size exchanges
Wrong size? We swap it, no photo, no questions.
Real human support
Questions? A real person answers, usually within a day.
Secure checkout
Encrypted payment with the providers you already trust.
Still have questions?
Will they ride up when I walk?
The leg is 7", made for thighs that touch: it covers where they meet and rub.
Are they really cool?
Honest answer: what you'll feel is thin. They're so thin you forget they're on, and there's no thick layer trapping heat.
Will they show under a thin dress?
There's no seam down the middle and none at the sides, so there's no line to show.
Do I wear underwear under them?
No. The gusset is built in, so they're worn on their own. Just the shorts, then the dress.
Isn't it a lot for shorts?
Buy 2, get 1 free: $16.66 a pair. Buy 3, get 3 free: $13.33 a pair. And you skip the panties underneath.
Will the waistband dig in or make a roll?
It's a wide, soft knit band that lies flat. No tight edge, so no roll at the waist.
Will the waistband roll down?
No. It's a wide, soft knit waistband that lies flat on your tummy and stays where you put it.
Will they feel hot and thick like my other anti-chafe shorts?
No. They're an ultra-soft knit so thin you forget they're on, with no seam down the middle. Feel them next to the pair you have now.
What size am I?
Sized by hips and waist: S hips 36.2–38.2 in (92–97 cm), waist 23.6–27.6 in (60–70 cm) · M hips 38.2–40.2 in (97–102 cm), waist 28–29.5 in (71–75 cm) · L hips 40.2–42.1 in (102–107 cm), waist 29.9–31.5 in (76–80 cm) · XL hips 42.1–44.1 in (107–112 cm), waist 31.9–33.5 in (81–85 cm) · 2XL hips 44.1–46.1 in (112–117 cm), waist 33.9–35.4 in (86–90 cm) · 3XL hips 46.1–48 in (117–122 cm), waist 35.8–37.4 in (91–95 cm). Between two sizes? Take the larger one.
Can I choose the colors in my pack?
Yes. One color per pair: nude, black, mocha or sand.
What are they made of? How do I wash them?
82% nylon, 18% spandex, in an ultra-thin knit. Machine wash cold on gentle, lay flat to dry.
Can I return them if I've worn them?
Yes. Wear them for 99 days. Wash them. Take them on the trip. Wrong size, or not the pair for you? Get a new size or a full refund. No photo, no questions.
The trip to the sun. The warm afternoon. The dress you've been saving.
Wear it all day, and forget what's under it. Backed by our 99-day guarantee.
Get my 6 pairsBuy 3, get 3 free
Buy 3, Get 3 Free · $13.33 a pair · Ships in 24/48 hours