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Men's Heavyweight Base Layers
Explore men’s heavyweight base layers in thermal tops and bottoms, merino and synthetic knits, brushed interiors and compression fits, from budget packs to premium sets.
Men’s Heavyweight Base Layers
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40+ stores, 70+ brands, 200+ products
Arc'teryx
Rho SV Zip Neck Men's
$140
ASOS
ASOS 4505 Ski thermal fleece lined sweat wicking base layer long sleeve top in black
$49
Big 5 Sporting Goods
Hot Chilly's Pepper Skin Men's Microfleece Top
$39.99
JCPenney
4.5 (50)Heat Holders Mens Original Alberto Crew Neck Long Sleeve Thermal Shirt
$39.99
REI
2.5 (2)Patagonia Capilene Thermal Weight Zip-Neck Base Layer Top - Men's
$81.73
Patagonia
4.8 (78)Men's Capilene® Thermal Weight Crewneck
$99
Zappos
260 Tech Merino Base Layer Long Sleeve Crewe
$125
REI
4.5 (42)Icebreaker Merino 260 Tech Long-Sleeve Half-Zip Thermal Base Layer Top - Men's
$99.73
Evo
evo Heavyweight Merino Wool Pants - Men's
$69.96
Filson
400g Merino Wool Bottoms - Dark Olive
$199
Icebreaker
Men's 300 MerinoFine™ Polar Thermal Leggings
$200
Icebreaker
Men's 260 ZoneKnit12 Thermal Leggings
$175
Here are men’s heavyweight base layers (tops, bottoms, and a few sets) geared for cold-weather warmth—merino, heavy synthetics, and fleece-lined options.
Material preference?
Merino Wool
Synthetic Thermal
Fleece-Lined
What do you need?
Top
Bottom
Set (Top + Bottom)
Primary use?
Ski/Snowboard
Work Outdoors
Hunting/Fishing
Everyday Winter
High-Output (Running/Hiking)
SuggestionsShow me merino heavyweight options
I want a full top + bottom set
Focus on the warmest base layers for sub-freezing temps
I need something good for high-output (won’t overheat)
Can you explain the difference between 260 vs 300+ merino weights?
