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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.
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
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20+ stores, 30+ brands, 100+ products
Smartwool
Men's Classic Thermal Merino Base Layer One Piece
$250
Lands' End
4.3Men's Stretch Thermaskin Long Underwear Crew Base Layer
$13.19
Icebreaker
Men's Merino 200 Oasis Short Sleeve Crewe Thermal Top
$95
Next
Mountain Warehouse Blue Merino Thermal Tops 2 Pack
$160
Decathlon
Wedze Men's BL 500 Thermal Ski Base Layer
$24.99
Zappos
4.0 (2)260 Tech Merino Base Layer Long Sleeve Crewe
$125
Smartwool
Men's Intraknit Thermal Merino Base Layer Crew
$150
+1
REI
4.2 (13)Intraknit Thermal Merino Colorblock Crew Base Layer Top - Men's
$130
Here are men’s thermal underwear tops across merino, waffle knits, crews, and henleys—ranging from lightweight to heavyweight base layers for work, ski, or sleep.
Warmth level?
Lightweight
Midweight
Heavyweight
Fabric preference?
Merino Wool
Synthetic (Poly/Spandex)
Waffle Knit
Silk Blend
Neck style?
Crew
Henley
1/4-Zip
Mock Neck
SuggestionsShow me the best merino midweight crew options for skiing
I want heavyweight waffle-knit thermals for outdoor work
I need lightweight base layers for sleeping (not itchy)
Can you keep it under $60?
Browse more options
