The Best in Warm Baselayer Technology

Warm Base Layer Technology Baselayers are designed to keep you warm, but just any old layers won't do. Sweat can build up and rob you of your natural heat. Our thermals are breathable to prevent moisture buildup from making you cold. It's a difference you can really feel, and it's the only way to start the day.

Double-layer Warmth

Hot Chillys says "If you're not having fun, it's just not worth it," and let's be honest; fun means warm. These double-layer thermals will not only keep you toasty, they'll make sure you don't overheat as well.

Hot Chillys Double Layer Thermal Top (Women's)

Chillys uses double-layer fabric to keep you extra warm, but always maintains excellent breathability for a true even-keeled comfort.

Polarmax Quattro Zip Top (Men's)

The Quattro men's thermal top gets Polarmax's warmest rating for its double-brushed Quattro fleece. Always technical though, you can still count on good breathability and moisture-wicking fabric.

Versatility Means Value

These tops can be worn as either baselayers or mid-layers, giving you true value. Instead of buying layers that are only good for one thing, check out these versatile styles that keep you covered the whole year round.

Spyder Savona ThermaStretch Top (Women's)

The Spyder Savona Top stretches so you can move freely. Plus, an antibacterial finish keeps you fresh all day long. Wear this as either a baselayer, or a lightweight mid-layer.

SmartWool Kiva Ridge Sweater (Men's)

SmartWool layers use Merino wool to provide the best moisture management available. The Kiva Ridge doubles as a technical layer for skiing, and a comfy sweater for afterwards.

Style that Performs

There's nothing that says you have have to be boring to be warm. JCC and Hot Chillys bring you technical base layers with fun style too.

Rossignol JCC Claire Top (Women's)

We bet you've never seen a thermal top quite like the JCC Claire. Technical fabric is blended with bright, fun prints for an eye-catching look.

Hot Chillys Print Thermal Top (Women's)

Hot Chillys unleashes your inner fashionista with this fun, printed layer. Always breathable and definitely warm, you won't have to worry about the weather.

Warmth for Kids

A warm child is a happy child. Dress them right with technical fabrics and comfortable fits. Check out the warmest kids' baselayers from Hot Chillys and Polarmax.

Polarmax Double-Layer Crew (Kids')

Two-layer fabric means extra warmth. The Polarmax Double-Layer Crew is great for skiing, snowboarding, or just playing in the snow.

Hot Chillys MTF Midweight Crew (Kids')

The Hot Chillys Midweight Crew holds onto body heat and maintains breathability so kids stay comfortable. It also has soft fabric and a relaxed fit that's as comfy as pajamas.