Men's Lightweight Long Underwear
GoLite Lite-Weight Tight - Men's
The GoLite Men's Lite-Weight Tights add a touch of insulation to your early morning trail runs without causing you to overheat by mile four.
SmartWool Lightweight Long Underwear Boot Top Bottom - Men's
If you ski, telemark, or snowboard, you'll appreciate the SmartWool Men's Lightweight Long Underwear Boot Top Bottom.
Patagonia Capilene 1 Bottom - Men's
The featherweight Patagonia Men's Capilene 1 Bottom is a fast wicking and fast drying base layer.
SmartWool Microweight Bottom - Men's
Wear the SmartWool Men's Microweight Bottom for temperate or warm-weather aerobic activities or as a next-to-skin base layer.
Craft Pro Dri Long Underpant - Men's
Get your legs warm this winter in the Craft Pro Dri Long Underpant and stay warm and sweat-free.
Marmot Silkweight Crew - Long Sleeve - Men's
The Marmot Silkweight Crew with long sleeves is the sickest base layer you could own for winter sports. Ideal for those who prefer a very lightweight base layer.
Craft Active Wool Zip Mock Long-Sleeve Top - Men's
Go get your heart rate in zone five and wear a top that will keep you warm and wick sweat instantlythe Craft Men's Active Wool Zip Mock Long Sleeve Top.
GoLite DriMove Long-Sleeve Top - Men's
The GoLite Men's DriMove Long-Sleeve Top's fast-wicking performance and lightweight insulation make it an ideal base layer for a variety of outdoor sports.
Ibex Pico Zip T-Neck Long-Sleeve Top - Men's
After a long climb to the top of a backcountry ridge, your base layer can often feel like a wet Kleenex draped on your backnot the Ibex Men's Pico Zip T-Neck Top. It will keep you dry and warm.
Mountain Hardwear Extend Featherweight Zip Tee Long-Sleeve - Men's
This year when you're looking down a line stacked with cliff bands, at least you'll know you're not shaking from being cold. The Mountain Hardwear Men's eXtend Featherweight Zip Tee is a lightweight and comfortable base layer made to keep you dry.