Winter Underwear - The Base Layer (Foundation)
 - Arctic / Antarctic, Cold Weather, Thermal Clothing

The base layer is the layer next to the skin, usually thought of as being underwear, or in cold climates, "thermal" underwear. Despite cold temperatures, perspiration is still a problem, in fact it can be more so than in a temperate climate. The body loses moisture at almost all times whether undergoing any great level of exertion or not. If there are numerous insulating layers keeping you warm, then it is more difficult for the perspiration to be able to escape. If the perspiration is not removed it will result in the wearer becoming uncomfortable and a feeling of "clamminess" as well as decreasing the efficiency of the insulating layers.

Underwear that is able to wick this moisture away from the skin surface therefore becomes much more important and this is an important factor in choosing garments. Modern "thermals" are made of synthetic fibers such and polypropylene or "fleece" that have good insulating properties and are also able to efficiently wick moisture away from the skin. Zips at the neck or even full length can help regulate temperature. A golden rule is to avoid cotton.

Cold Weather Underwear

Icebreaker BodyFit 200 Oasis Zip-Neck Top - Men's Spark/Spark/Spark


Icebreaker Oasis Equalizer Crew - Long Sleeve - Men's Clay/Clay


Icebreaker Oasis New Streak Crew - Long Sleeve - Men's Balsam/Balsam


Ortovox Rock N Wool Top - Long-Sleeve - Men's Absolute Green


Swix Race X Warm Bodywear 1/2-Zip Top - Men's Black


Icebreaker BodyFit 200 Oasis Hooded Top - Men's Aegean/Rocket

On sale - now $49.5

Icebreaker Bodyfit 200 Zone Crew - Long-Sleeve - Men's Alpine/Chartreuse


Icebreaker BodyFit 260 Tech Crew - Men's Admiral


Icebreaker IKA Top - 1/2-Zip - Men's Real Tree Xtra/IB Orange


Ibex OD Henley Shirt - Long-Sleeve - Men's Billiard Heather


Icebreaker BodyFit 200 Zone Zip-Neck Top - Men's Balsam/Night/Night


Icebreaker BodyFit 260 Tech Zip-Neck Top - Men's Admiral/Admiral


The North Face Summit L1 Baselayer Top - Men's TNF Black/Vaporous Grey


Mammut Trovat Pro Half-Zip Top - Men's Black


Houdini Airborn Zip Top - Men's Bleached Black


DAKINE Tech T-Shirt - Long-Sleeve - Men's Black Snake


Burton Lightweight Tech Tee - Men's True Black


Burton Lightweight Crew - Men's Glacier Blue Apache


DAKINE Grant Crew Top - Men's Brick


Neff Base Layer Top - Long-Sleeve - Men's Palms


Swix Race X Bodywear Top - Men's Black/White


The North Face Light Crew Neck Top - Men's Diesel Blue


Patagonia Capilene 2 Lightweight T-Shirt - Short-Sleeve - Men's Glass Blue/Leaden Blue X-dye

On sale - now $22.5

Patagonia Capilene Lightweight Crew Top - Men's Underwater Blue


Helly Hansen Active Flow Top - Men's Cobalt Blue/HH Print

On sale - now $24.97

Homeschool Loudmouth Top - Men's Devoid


Icebreaker Everyday Crew Top - Short-Sleeve - Men's Black


Swix Race X Bodywear 1/2-Zip Top - Men's Black


Cloudveil Lightweight Crewneck Top - Men's Cavier

On sale - now $24.75

Armada Contra Baselayer Crew - Long-Sleeve - Men's Black


Helly Hansen Active Flow 1/2-Zip Top - Men's Black


Helly Hansen Dry Charger 1/2-Zip Top - Men's Black


Minus 33 Ticonderoga Lightweight Crew Top - Men's Azure Blue


Duckworth Maverick T-Shirt - Short-Sleeve - Men's Black


Minus 33 Allagash Lightweight Zip-Neck Top - Men's Black


Outdoor Research Sequence Zip-Neck Top - Men's Black


Burton AK Power Dry Crew - Short-Sleeve - Men's Snow Akamo


SmartWool NTS Micro 150 T-Shirt - Short-Sleeve - Men's Black


Spyder Captain Top - Men's Black/Volcano


SmartWool Micro 150 Crew - Long-Sleeve - Men's Sea Pine