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Browse men's base layers by warmth level and fabric: lightweight, midweight, and thermal, merino and synthetics, plus top and bottom styles, fit, and odor-wicking features.

Browse men's base layers by warmth level and fabric: lightweight, midweight, and thermal, merino and synthetics, plus top and bottom styles, fit, and odor-wicking features.

Pick your base layer

Explore the categories above to narrow by warmth level + fabric (lightweight/midweight/thermal; merino vs synthetics), plus tops vs bottoms and odor-resistance.

Primary use?

Ski/Snowboard
Hiking
Running
Workwear/Everyday
Cold-weather camping

Fit preference?

Compression
Slim
Regular
Relaxed

Top style?

Crew
Quarter-Zip
Mock Neck
Hooded
Tank
SuggestionsSuggestions
Show me lightweight merino tops
Show me midweight synthetics (tops + bottoms)
I want the warmest thermal set for very cold weather
Prioritize odor resistance for multi-day wear
Help me choose the right warmth level
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