Mountain Hardwear Microchill Fleece Pant - Men's

The Mountain Hardwear Men's Micro Chill Pant insulates you from cold weather and cold chairlifts while giving you freedom to move.

Mountain Hardwear Power Stretch Tights - Men's

The Mountain Hardwear Men’s Power Stretch Tights are the base layer of choice for the coldest days of winter, whether you’re climbing ice, shredding powder, or slogging up a peak.

Patagonia Capilene 4 Bottom - Men's

The highly insulating Patagonia Men's Capilene 4 Bottoms are made for very cold conditions.

Burton Ak Select Pant - Men's

Burton sent out to make the Men’s Ak Select Pant one of the most unique and technically advanced base layers out there.

Patagonia Merino 4 Bottom - Men's

Whether they’re underneath your ski shells, climbing pants, or fishing waders, the Patagonia Men’s Merino 4 Bottom engulfs your lower half in the super-soft, moisture-wicking, odor-fighting goodness of pure merino wool.

Patagonia R1 Pant - Men's

The Patagonia Men's R1 Pants work great as a heavy base layer or as a less-bulky alternative to fleece bottoms. Patagonia's stretchy R1 fabric moves with you and wicks perspiration as you work hard.

Arc'teryx Rho AR Bottom - Men's

The Arc’teryx Men’s Rho AR Bottom utilizes Polartec Power Stretch on the outside and a soft-handed fleece interior to keep you warm during your outdoor pursuits.

Outdoor Research Specter Fleece Pant - Men's

Nylon-faced Motion Fleece makes the Outdoor Research Men's Specter Pants versatile enough to wear under you ski shells or alone for trail running and cross country skiing.

Marmot Reactor Fleece Pant - Men's

Slip into the lightweight Marmot Men's Reactor Fleece Pant when you need a little extra protection from cold ski lift rides and butt-freezing belays.

DAKINE Torque Long Underwear Bottom - Men's

Arc'teryx Rho AR Boot-Cut Bottom - Men's

The Arc'teryx Men's Boot Cut Rho AR Bottoms feature below-the-knee legs to eliminate extra fabric that would only bunch up against your skiing, snowboarding, or climbing boots.

SmartWool Sport NTS Bottom - Men's

With a contoured performance fit and light ribbed merino wool, the Smartwool Men’s Sport NTS Bottom works alone in mild conditions or as a technical baselayer when the mercury drops.

Under Armour Base 3.0 Legging - Men's

Helly Hansen Odin Baselayer Pant - Men's

Helly Hansen uses superfine merino wool and two variants of their LIFA polypropylene fabric to construct the Odin Baselayer Pant.