Sierra says: Pull on the lightweight 686 Women's Modern Support Top under your mid-layer and stay warm on frigid pow days. This scoop-neck long underwear top features a built-in support liner for comfort in motion, thumbholes for maximum warmth, and flatlock seams for easy layering. Embroidered accents and contrast stitching separate the Modern Support Top from your boring long-sleeve thermal...

Sierra says: Who doesn't love polka dots?? The Burton Lightweight Henley Thermal comes with the cute and accessible button down design.

Sierra says: Breathe easy with the Burton Lightweight women's thermal crew. Comes in fun and colorful designs that allow you to stay warm and dry no matter what the conditions.

Sierra says: We'll spare you the wet and give you more of the wild.

Sierra says: Ride it, rage it, then roll into bed.

Sierra says: Set your climate control to auto.

Sierra says: Fun, stylish and ready to wick away and unwanted moisture!

Sierra says: If you plan on skipping a snow trip with your friends and family because you think you wouldn't make it to your winter homecoming dance in time, then Vans has the perfect solution: Tuxedo Print base layer. Vans says: Combine this with Van's matching Tuxedo print or Green Print thermal pants and you're set! Your last run on the hill straight to the car, then straight to...