Shop men's thermal underwear tops in lightweight to heavyweight warmth, crew and henley styles, merino and waffle knits, and base layers for work, ski, or sleep.
Men’s Thermal Underwear Tops
60+ stores, 100+ brands, 200+ products
Columbia
4.6 (169)
Men’s Omni-Heat™ Midweight Baselayer Half Zip
$45
Decathlon
Wedze Men’s BL900 Wool Thermal Ski Base Layer Top
$99.99
Quince
4.9 (454)
100% Merino Wool All-Season Long Sleeve Base Layer Tee
$44.90
REI
4.5 (42)
Icebreaker Merino 260 Tech Long-Sleeve Half-Zip Thermal Base Layer Top - Men's
$99.73
Icebreaker
Men's Merino Blend 260 ZoneKnit™ Seamless Long Sleeve Crewe Thermal Top
$119
ASOS
ASOS 4505 Ski thermal fleece lined sweat wicking base layer long sleeve top in black