$98.95
The Arcteryx Mens Rho AR Bottom utilizes Polartec Power Stretch on the outside and a soft-handed fleece interior to keep you warm during your outdoor pursuits.
$69.95
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.
$32.97
When you're heading for the mountains in sub-zero temps, Mountain Hardwear Men's Power Stretch Tights are the perfect warm base layer pants for your layering system.
$64.95
The Mountain Hardwear Mens Power Stretch Tights are the base layer of choice for the coldest days of winter, whether youre climbing ice, shredding powder, or slogging up a peak.
$98.95
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.
$125
Whether theyre underneath your ski shells, climbing pants, or fishing waders, the Patagonia Mens Merino 4 Bottom engulfs your lower half in the super-soft, moisture-wicking, odor-fighting goodness of pure merino wool.
$80
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.
$79.95
With a contoured performance fit and light ribbed merino wool, the Smartwool Mens Sport NTS Bottom works alone in mild conditions or as a technical baselayer when the mercury drops.