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Underwear

Stay warm, dry, and supported with high-performance men’s underwear from Gorilla Surplus. From thermal tops to durable base layer bottoms, our collection offers dependable comfort whether you’re on duty, in the field, or layering up for cold-weather adventures. Free shipping on orders over $225!

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Layered Comfort for Demanding Conditions

Our men’s underwear includes both upper and lower base layers—perfect for full-body insulation and all-day wear. Choose from thermal shirts, long johns, compression bottoms, and boxer briefs made for cold, rugged, or high-mobility environments. These essentials fit smoothly under your pants and long-sleeve shirts, keeping you comfortable and protected in every season.

Designed for Utility and Everyday Comfort

Moisture-wicking materials, stretch-fit fabric, and ergonomic cuts ensure our underwear supports your every move—whether you're hiking, working, or training. These tops and bottoms double as performance gear and everyday basics, built to withstand tough conditions while providing the comfort you need from your first layer.

FAQ

What kinds of men’s underwear do you carry?

We carry both top and bottom underwear, including thermal shirts, long johns, briefs, compression layers, and base sets suitable for outdoor and casual use.

Are your underwear pieces suitable for cold weather?

Yes. Our thermal tops and bottoms are made for insulation and are ideal for layering in low temperatures.

Can I wear these every day, not just outdoors?

Definitely. While built for performance, the soft, breathable materials make them great for everyday wear too.

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