Winter Underwear - The Base Layer (Foundation)
 - Arctic, Antarctic, Cold Weather, Winter 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.

Cold Weather Underwear for Men
Lightweight Bottoms | Lightweight Tops | Midweight Bottoms | Midweight Tops | Heavyweight Bottoms | Heavyweight Tops


Patagonia Merino 2 Lightweight Zip-Neck Top - Men's Black

On sale - now $70
was
$100


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

On sale - now $87.99
was
$109.99


Icebreaker BodyFit 260 Tech Crew - Men's Admiral/Largo Stripe

On sale - now $82.49
was
$109.99


Icebreaker IKA Top - 1/2-Zip - Men's Mossy Oak Break Up Infinity

On sale - now $87.99
was
$109.99


SmartWool Lightweight Wind Zip Top - Men's Graphite

On sale - now $89.96
was
$119.95


Icebreaker BodyFit 260 Tech Zip-Neck Top - Men's Black

$119.99


Burton Lightweight Tech Tee - Men's True Black

$34.95


Burton Lightweight Crew - Men's True Black

$39.95


DAKINE Quick Draw Crew Top - Men's Black

On sale - now $31.96
was
$39.95


Backcountry Lightweight Crew Neck Top - Men's Black

On sale - now $24.72
was
$44.95


The North Face Light Crew Neck Top - Men's Graphite Grey

$44.95


Patagonia Capilene 2 Lightweight T-Shirt - Short-Sleeve - Men's Black

On sale - now $31.5
was
$45


Patagonia Capilene 1 Graphic Crew - Long-Sleeve - Men's Storm Front: Alpha Green

On sale - now $36.75
was
$49


Patagonia Capilene 2 Lightweight Crew - Men's Black

On sale - now $34.3
was
$49


Patagonia Capilene Lightweight Crew Top - Men's Electron Blue

$49


Backcountry LIghtweight Snap Henley Top - Men's Black

On sale - now $27.47
was
$49.95


Helly Hansen Active Flow Top - Men's Black

$49.95


Homeschool Loudmouth Top - Men's Devoid

$49.95


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

$49.99


Mammut Go Dry Top - Long-Sleeve - Men's Black

$54.95

Cold Weather Underwear for Women
Lightweight Bottoms | Lightweight Tops | Midweight Bottoms | Midweight Tops | Heavyweight Bottoms | Heavyweight Tops



Patagonia Merino 2 Lightweight Zip-Neck Top - Women's Birch White

On sale - now $80
was
$100


Icebreaker BodyFit 200 Ika Zip-Neck Top - Women's Mossy Oak Break-Up Infinity/Magenta

On sale - now $87.99
was
$109.99


Icebreaker BodyFit 200 Oasis Hooded Top - Women's Chartreuse/Glacier/Cruise

On sale - now $87.99
was
$109.99


Mons Royale Boyfriend Top - Women's Lavender/Black

On sale - now $77.97
was
$119.95


Bogner - Fire+Ice Alexia Top - Women's Pink Spacedye

On sale - now $129.32
was
$198.95


Patagonia Capilene 4 Expedition-Weight One-Piece Suit - Women's Black

On sale - now $129.35
was
$199


Patagonia Capilene Daily Shirt - Short-Sleeve - Women's Black

$29


Burton Lightweight Tank Top - Women's True Black

$29.95


Burton Lightweight Scoop Top - Women's Kamana Wanna Lei Ya

On sale - now $24.46
was
$34.95


Patagonia Capilene 1 Silkweight T-Shirt - Short-Sleeve - Women's Black

On sale - now $22.75
was
$35


Patagonia Capilene 1 Silkweight Stretch Crew Top - Women's Diamond Dancer/Tyrian Purple

On sale - now $29.25
was
$39


Patagonia Capilene Daily Shirt - Long-Sleeve - Women's Black

$39


Burton Lightweight Crew - Women's Kamana Wanna Lei Ya

On sale - now $27.96
was
$39.95


Icebreaker Everyday Cami - Women's Black

$39.99


Backcountry Lightweight Crew Neck Top - Women's Black

On sale - now $31.46
was
$44.95


Patagonia Capilene 2 Lightweight V-Neck Top - Women's Black

On sale - now $31.5
was
$45


Patagonia Capilene 2 Lightweight V-Neck T-Shirt -Short-Sleeve - Women's Cleanline Stripe/Tailored Grey

On sale - now $31.5
was
$45


Patagonia Capilene Lightweight Crew Top - Women's Aqua Stone

$49


Roxy Glimmer Top - Women's Toluca Stripe/Anthracite

On sale - now $39.96
was
$49.95


Helly Hansen Daybreaker Half-Zip Fleece Top - Women's Miami

On sale - now $41.21
was
$54.95