Thermal underwear for women and men that will keep you warm and fashionable.


‘Tis the season for skiing and all forms of cold-weather activity, to be fair. And, as all slope side athletes—both amature and advanced—know, keeping warm is all about layering.

Remember layering starts with thermals. 

Style Tip: how to pick the best style

Thermal underwear for women and men can be tricky.

So look for an option that cuts down on the bulk but keeps you warm; wicks away sweat, but doesn’t feel too thin.

RELATED: Fleece Lined Leggings That Actually Keep You Warm

Whether you’re shopping a one-piece or a set, a single top or a bottom, we’ve rounded up the best base layers and thermals for you.

How to Shop

From activewear companies that have made sure to offer options for all those cold-weather sports, brands that know nothing more than the best of the best when it comes to skiing, or anything in between, shop our current favorites in thermals for men and women, here.

You won’t regret it. 

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Thermals for Women

Best Thermal Leggings


Outdoor Voices FrostKnit 7/8 Legging

Shop Now at Outdoor Voices

As thermals goes, we love the active nature of these Outdoor Voices leggings.

Whether you’re doing some cold-weather running or slipping them on under a pair of ski pants, they’re crafted of the company’s FrostKnit material that keep you warm while also wicking away the sweat.

Best Merino Wool Leggings


Smartwool Merino 250 Baselayer Bottom

Shop Now at Amazon

Smartwool is one of the OGs for performance layers, beloved by skiers and winter hikers alike. Make sure to wear them inside of your ski suit and you are good to go anywhere!

Best Thermal Bodysuit


Perfect Moment Base Jersey Ski Bodysuit

Shop Now at MyTheresa

Sometimes thermals comes in the form of a bodysuit, like Perfect Moment’s warm sport turtleneck style.

You’ll love it because it’s as warm and sweat-wicking as your favorite thermal underwear top, but with the added bonus of a bodysuit style that won’t bulk or come un-tucked as you move.

Best Thermal Top


Falke Paneled Stretch Wool-Blend Base Layer

Shop Now at Net-a-Porter

We love this thermal underwear top because we can zip it up or down with ease, depending on the weather.

And it’s seamed allover to provide a comfortable fit that’s slim without feeling too tight, getting rid of the bulk while adding performance warmth at the same time.

Best Ski Base Layer


Goldbergh Multicolour Ruby Striped Base Layer Ski Top

Shop Now at Browns

Add a pop of color to your ski bunny look with this colorful striped base layer from performancewear company Goldbergh.

Best Ribbed Knit Top


Cordova Base Layer Ribbed Knit Top

Shop Now at MyTheresa

If you’re looking for thermals with a little bit more heft, shop this ribbed base layer top from Cordova.

It’s crafted of an off-white hue, so it will go with anything that you layer under or over, all ski season long. Perfect to go under your apres ski sweaters.

Best Ski Base Layer Womens


Sweaty Betty Ski Jacquard Base Layer Leggings

Shop Now at Shopbop

Leave it to Sweaty Betty to add a little whimsy to your ski thermal underwear sets, with warm jacquard knit base layer leggings printed with a colorful skier pattern.

Thermals for Men

Best Thermal Onesie


Matek Gentoo Full Length Onesie

Shop Now at Matek

We love a onesie, especially one with style. We love Matek for all of their performance layers, but one of our favorites is definitely the thermal underwear one-piece.

Best Thermal Leggings Mens


Icebreaker Merino Standard 175 Everyday Cold Weather Leggings

Shop Now at Amazon

Another performancewear favorite for skiers is Icebreaker, whether you’re shopping a facemask or—yes—thermals.

Shop their merino wool collection for sweat-wicking bottoms that will keep you warm while you’re out and about.

Best Extreme Cold Thermal


Patagonia Capilene Air Crew

Shop Now at Patagonia

Patagonia has created Capilene Air, which is a material they have blended with wool for “maximum warmth and breathability,” making for the perfect cold-weather active thermal underwear top—or bottom!

Best Thermal Hoodie


L.L. Bean Cresta Wool Ultralight 150 Base Layer Hoodie

Shop Now at L.L. Bean

For a more convertible lightweight thermal underwear top, shop this L.L. Bean hoodie that you can turn into a turtleneck or hooded top with ease.

Best Thermal Turtleneck


Uniqlo HeatTech Ultra Warm Turtleneck Long-Sleeve T-Shirt

Shop Now at Uniqlo

When it comes to affordable thermals, Uniqlo’s HeatTech items take the cake. With tops and leggings alike, it’s a super warm, sweat-wicking option for all your slope side needs.

Best Mens Thermal Set


Aviator Nation Thermal Base Layer Set

Shop Now at Aviator Nation

If you love a matching moment, but don’t want to shop a onesie, look to Aviator Nation.

They’ve created a thermal base layer set that makes you feel cool and fashionable when it comes to your thermals, as well as warm while you exercise in the cold.

Best Thermal Leggings Mens


Lululemon Keep the Heat Thermal Tight 27”

Shop Now at Lululemon

Sweat-wicking on the inside and insulated warm on the outside, these thermal underwear leggings are great whether you’re going out for a run in the cold or layering them underneath ski pants for a day on the slopes.

Pro Tip


When you are shopping for thermals, go for maximum warmth with as little bulk as possible. Layering is key.

Just because your thermals are the first layer to be put on doesn’t mean that they can’t look great, too.

Shop our favorite thermal underwear for men and women here.

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All products featured on Viva Cabana are independently selected by our editorial team, and the company may earn commission through affiliate links.