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Youth Hot Chillys Originals on a snow covered ski slope
Hot Chillys Youth Originals Base Layers Kids on a ski slope snow on the ground

Get 'em while you can!

Hot Chillys #1 Youth Layers are available now
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Person sitting on a rock in a snowy landscape wearing a black long-sleeve top and colorful patterned leggings.
Person sitting on a rock in a snowy landscape wearing ski goggles and patterned pants.

A Classic Reborn — Because Some Legends Never Fade.

Because real warmth never goes out of style — rediscover the layer that defined a generation of comfort.
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Woman in a black outfit standing in a snowy landscape
Woman in a black outfit standing in a snowy landscape

Warmth That Moves With You

Micro-Elite Chamois keeps you warm on the mountain and comfortable everywhere else.
Gear Up Now
Man wearing a blue sweater standing in a snowy forest
Man in a blue sweater standing in a snowy forest

Your Climate-Control Layer

Advanced tech. Effortless comfort. Ultimate versatility.
Explore Clima-Tek

Looking for the new stuff?

We've got new Hot Chillys in the warehouse!

Some products have limited availability, don't miss out.

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Woman wearing Hot Chillys thermal baselayers next to a river
Our  women’s base layers go a step beyond the features of our basic black under layers by adding a flair for fun and expression with prints, patterns, and color! Hot Chillys supports your wild side, so choose your favorite from our women's thermal base layers, tops, bottoms, and socks.

Women's Base Layers

Shop Women's
Man wearing Hot Chillys thermal base layers sitting on a snow covered log
Engineered with performance in mind, our men's base layers will keep you dry, warm, and very comfortable, so you can concentrate on having a good time outdoors. With Hot Chillys base layers for men, you can conquer the coldest temperatures while still enjoying your time outdoors.

Men's Base Layers

Shop Men's
Kids playing wearing thermals in a cabin
Focusing on comfort and performance, Hot Chillys' uses the same technical properties on our kid’s thermals as our adult base layer collections. 'Cuz kids want to stay warm, dry, and comfortable so that they can have fun, too!

Youth & Kids Base Layers

Shop Youth
Hiker wearing Hot Chillys Elite Heat socks at the north entrance to Yellowstone National Park
Designed for cold-weather performance and everyday comfort, Hot Chillys Socks are your go-to layer for keeping feet warm, dry, and supported. Crafted with moisture-wicking fibers and a soft, insulating blend, these socks help regulate temperature so no one has to worry about their feet.

Winter Sport Socks

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Youth wearing a gray beanie and colorful thermal base layers in a snowy mountain landscape
Soft, breathable, and built for warmth—Hot Chillys beanies and gaiters lock in heat and keep out the chill, whether you're on the mountain or on the move.

Beanies & Gaiters

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Woman wearing Hot Chilly winter sport mask with a tree covered mountain in the background
Engineered for high-output cold-weather activity, Hot Chillys masks feature moisture-wicking, quick-dry performance fabrics that keep you warm without overheating.

Face Protection

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All season layers

Woman in a gray knit hat and light blue sweater standing in a snowy forest.
Our most versatile layers

Clima-Tek Cold Weather Base Layers
Family of three walking together in a snowy landscape with mountains in the background
Activewear in adult & youth sizes

High-Performance Thermals

Let customers speak for us

from 100 reviews
Good looking shirt

Well made for outdoor stuff but also great looking for casual wear

William Miller
Men's Clima-Tek Zip-T - Grey Heather
Great Ski Sock

These fit perfect and super warm in my boot. No need for electric socks or boots.....just get these.

Craig
Men's Elite Heat Mid Volume Sock - Black/Red
The best

Sad to admit, but my last set of these were over 20 years old and are still in good shape. Loved the new purchase and look forward to these lasting forever!!!

Craig
Men's La Montaña Fleece Bottom - Black
Simply the best

Sad to admit, but my last set of these were over 20 years old and are still in good shape. Loved the new purchase and look forward to these lasting forever!!!

Craig
Men's La Montaña Fleece Zip T - Black/Black
Perfect

Perfect length. Not sure what's confusing about the length in the other review. I don't want my base layer in my boots. They are warm and perfect for skiing and snowboarding. I usually am as 34 so I'm in between sizes. I went medium and they are a bit snug but not uncomfortable. I wish I purchased them sooner.

Brett Hadley
Men's Micro-Elite Chamois Deluxe Boot Tech Tight - Black

Greatest

Francine Long
Men's Micro-Elite Chamois Tight - Granite

I can now hangout outside

Jadrian
Men's Pepper Skins Bottom - Black
Amazing

I was given a pair of these 15 years ago. I wore them out. Bought a new set, and love the new design even more. I work outside in temps down to -20F. These thermals are the only way I would make it through the day. They're also really comfortable and look good on their own.

Serena
Women's La Montaña Fleece Bottom - Black
Wonderfully silky base layer

This Peachskins crew neck is the perfect base layer when you just need a little bit of extra warmth for sports. In addition, it also works as a sophisticated tee under sweaters or jackets. More colors would be a great addition. I usually wear a small in tops, but in Hot Chillys, I need a medium, which fits perfectly, so you may want to consider sizing up.

Gail
Women's Peach Skins Crewneck - White
Happy skiing steamboat this winter!!!

Hotchillys are love them !!!

Art Hallman
Men's Micro-Elite Chamois Tight - Black
Really warm Micro-Elite Chamois Zip T-neck

This is an awesome base layer for warmth. It is very cozy on the inside but sleek on the outside which makes it great underneath other layers. The zip t-neck is a must for me to allow for a cool down. This is the 2nd one that I own and if they would make another print, I would buy it!

jacqueline
Women's Micro-Elite Chamois Solid Zip-T - Black
Good quality

Very warm good durable and cozy I wear in Alaska on the north slope -20 degrees

Charles Henry
Men's Micro-Elite XT Zip-T - Black/Grey
Too Fuzzy

I was not expecting the product to feel like a blanket. So soft but too thick.

Peggy Meeks
Women's La Montaña Fleece Zip-T - Black/Black
Best cold weather turtle neck.

I have bought these for years! Love the warmth and no bulk.

DIANE PERLMAN
Women's Peach Skins Solid T-Neck - Lagoon
Better than expected

This shirt was for my husband an avid cyclist and contractor for biz and said this has to be the best shirt I’ve worn. ( trust me…he owns many of the big name brands) He said most shirts you get hot in at some point (cotton and tech) but this fabric not only feels amazing it’s so breathable! Keeping him comfortable and dry all day. He’s just ordered the hoodie and another T shirt.

Patti Fisher
Men's Clima-Tek Crewneck - OD Heather

Check out our Bestsellers

Try one. Love it. Rinse, repeat.

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Red logo with 'SINCE 1985' and a chili pepper on a white background

It all started in 1985, when Hot Chillys introduced the first body fit Thermal Base Layers.

Hot Chillys set a new standard on the slopes by blending warmth, performance, and fit —introducing base layers with fabric tech once exclusive to elite running gear.

Check out Chillys
Shop Youth
Three children in ski gear standing on a snowy slope with mountains in the background

Add some spice

Shop Fiesta
Person snowshoeing through a snowy forest
Shop Micro-Elite Chamois

Base Layer Tips

snow play slope winter scene
4 min read
How to Choose the Right Size for Youth Thermal Clothing

How to Choose the Right Size for Youth Thermal Clothing When it comes to keeping our kids warm in chilly...

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Staying Cool and Protected: The Surprising Benefits of Thermal Base Layers for Summer
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Staying Cool and Protected: The Surprising Benefits of Thermal Base Layers for Summer

As the temperatures rise and the sun beats down, it's easy to assume that thermal base layers are only for...

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Man hiking on a mountain
3 min read
Stay Warm in the Coldest Temperatures with Hot Chillys' Thermal Base Layers

As the temperatures start to drop and the winter chill sets in, it's time to start thinking about how to...

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