Weather coming? Get Ready!
Put 'em on, get going. No buns left behind.
See why millions of people choose Hot Chillys
Since 1985 Hot Chillys has been a leader in engineering base layers that keep you warm, dry and looking good, not necessarily in that order.

We were pretty blown away...
We were pretty blown away by the great quality and function of the Hot Chillys Micro-Elite Crew. If you're looking for a layer that serves as a jack-of-all-trades for a decent price, this might be your next piece of long underwear!
- Outdoor Gear Lab

Hot when it's chilly
This isn't my first pair of Hot Chillys, and frankly...after a few hundred washes they still stay warm and dry.
C. Purdy
Warm comfortable fit
This product is great! Like the fit and the comfort they are not bulky at all... feels like a second skin.
Claire Swaim
Great for everyday use
Really comfortable and warm. Highly recommended for daily use (i.e under jeans for cold climates)
Kevin Waskelis
Hot Chillys Expert Tips
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Keeping the fun going since 1985
Let customers speak for us
from 75 reviewsI had purchased the top separately and loved it, so I purchased the matching pants, and love them as well. A smooth and snug fit. You will not be disappointed!
I bought a set (top, bottom and socks). To take on a Kansas Late Season goose hunt. They were VERY comfortable and soft against my skin and kept me warm while laying in my layout blind. Very happy with my selection.
I returned this item because it felt too tight on my face
I wear a medium and it was very tight. Going to gift it to. Daughter in law.
I wear this as a base layer for downhill, Xc ski, running even walking the dog! Brilliant all in one hood, face mask and cozy fuzzy inside, like the hand of this even better than my R1 Patagonia. Wore it for 7 days straight without washing and never got smelly.
They are cozy on the inside and slick on the outside! Love them. Skiing in 20 degree weather and didn’t get cold at all.
Great to stay warm and layer as needed. Fit allows you to have a true moisture wicking base layer and allows you to add this for warmth without bulk so you can add another insulating or just outer shell.
Bought a full set of La Montana about 14 years ago. By far, it is the warmest and most comfortable underlayer I have ever worn. My teenager has recently taken possession of them and I know that I will not get them back. Therefore, I am preparing to order another set.
Perfect for subzero days
Perfect fit. Very happy with versatility. I am ski instructor at high mountain resort and weather is constantly changing. Super happy with how easy it is to make adjustments and the weather changes. Thanks!
The Dude Unisex Tee is beautiful
Perfect gift
Very warm!
I was lucky enough to stumble across Hot Chillys during a ski trip to Vail about five years ago. Since then I have outfitted our entire family in their wonderful baselayer products, and these youth originals were no exception. My avid skier enjoyed these so much he wanted to wear them around the house after a long day on the slopes. We purchased both the tops and bottoms and they are very comfortable while keeping him exceptionally warm. Thanks for making great items - keep it up!
I have been wearing this for work for years and they stand up well, and will buy again.