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Men's Outdoor Work Base Layers

Explore men’s outdoor work base layers in thermal tops and bottoms, merino and synthetic knits, heavyweight warmth and lightweight breathability, plus moisture-wicking sets.

Men’s Outdoor Work Base Layers

Status50+ stores, 70+ brands, 200+ products
Carhartt Force® Heavyweight Synthetic Wool-Blend Fleece Base Layer Quarter-Zip Top
Carhartt
Star rating5.0 (8)

Carhartt Force® Heavyweight Synthetic Wool-Blend Fleece Base Layer Quarter-Zip Top

$92.99
Men's Capilene® Thermal Weight Crewneck
Patagonia
Star rating4.8 (78)

Men's Capilene® Thermal Weight Crewneck

$99
Men's 260 ZoneKnit12 Thermal Leggings
Icebreaker

Men's 260 ZoneKnit12 Thermal Leggings

$175
Icebreaker 200 ZoneKnit Merino Thermal Base Layer Leggings - Men's
REI
Star rating4.3 (7)

Icebreaker 200 ZoneKnit Merino Thermal Base Layer Leggings - Men's

$109.73
Force Midweight Micro-Grid Base Layer Crewneck
Carhartt
Star rating4.0 (2)

Force Midweight Micro-Grid Base Layer Crewneck

$62.99
400g Merino Wool Long Sleeve Half-zip - Black
Filson

400g Merino Wool Long Sleeve Half-zip - Black

$229
evo Heavyweight Merino Wool Pants - Men's
Evo

evo Heavyweight Merino Wool Pants - Men's

$69.96
ASOS 4505 Ski thermal fleece lined sweat wicking base layer long sleeve top in black
ASOS

ASOS 4505 Ski thermal fleece lined sweat wicking base layer long sleeve top in black

$49

Here are a bunch of men’s base layers that work well for outdoor jobs—mix of merino and synthetic, including heavier cold-weather options (tops and bottoms).

Temperature range?

Mild (40–60°F)
Cold (20–40°F)
Very Cold (below 20°F)

Material preference?

Merino wool
Synthetic
Wool blend

What do you need?

Top
Bottom
Set (top + bottom)
SuggestionsSuggestions
Show me heavyweight options for below 20°F
I want merino wool (no itch) base layers
I need base layer bottoms for work
I sweat a lot—show moisture-wicking synthetics
Can you explain the difference between midweight and heavyweight base layers?
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