Heavy Base Layer Bottom

After three years of testing out the perfect fabric blends and fit for the ultimate base layer, we believe we’ve landed on the most technical base

Womens Thermal Underwear Set, Soft Fleece Lined

Men's Ridgeline Heavy Base Layer Top (OD Green)

Minus33 Merino Wool Clothing Kancamagus Men's Midweight Wool Bottom

Ridgeline Series, Base Layer Flash Sale

Heat Holders® Women's ORIGINAL™ Base Layer Bottoms are a heavy weight thermal base layer ideal for extreme cold. Matching Tops also available., DUAL

Women's ORIGINAL™ Base Layer Bottoms

Heavyweight Base Layers

Born Primitive Tactical

A year-round favorite, our Classic All-Season Merino Base Layer Bottom works hard to keep you comfortable everywhere, from the ski lifts to the

Smartwool Classic All Season Merino Base Layer Bottom Black

The Ridgeline Heavy Base Layer Bottom is a next-to-skin base layer designed to be worn in more frigid conditions. It features a heavyweight, super

Men's Ridgeline Heavy Base Layer Bottom (Wolf Grey)

Men's Dryactive Wool Base Layer Bottom - Heavy - Black - X-Large