Mens Thermal Underwear Set Merino Wool Base Layer Khaki

Mens Thermal Underwear Set in 100% Merino Wool

Cold weather ends more rides than rain does. This mens thermal underwear set gives you a full merino wool base layer, a long sleeve crew neck top plus matching pants, so you can ride, work, hike or shovel the driveway in real warmth. Made from 100% merino wool, it traps body heat while staying light enough that you forget you are wearing it under your gear.

Why Merino Wool Beats Synthetic Long Johns

Regular long underwear holds sweat and starts to smell by lunchtime. Merino wool is different. It regulates temperature naturally, wicks moisture away from your skin, and is naturally antibacterial and odor resistant, so you stay dry and fresh through a full day in the saddle. Unlike cheap wool, merino never itches. It feels soft against bare skin from the first wear.

Built for Riders and Cold Weather Living

• Material: 100% merino wool, breathable and moisture wicking
• Set includes: long sleeve crew neck top and thermal bottom pants
• Fit: slim base layer cut that slides easily under jeans, leathers or riding gear
• Waistband: plush elastic that stays put without digging in
• Color: khaki, sizes S through 2XL
• Odor control: naturally antibacterial, wear it all day without worry

Who This Base Layer Is For

Perfect for motorcycle riders pushing the season into late fall and winter, plus skiers, hunters, campers and anyone who works outside in the cold. It also makes a practical gift for bikers who refuse to park the bike just because the temperature dropped. Pair it with pieces from our heated motorcycle gear collection for deep winter rides, or browse all riding gear to complete your cold weather setup.

Frequently Asked Questions

Is this thermal underwear set warm enough for winter motorcycle riding?

Yes. Merino wool is one of the best insulators by weight. Worn under a riding jacket and pants it keeps your core warm at highway speeds in cold weather. For freezing temperatures, layer it under heated or windproof gear.

Does merino wool itch?

No. Merino fibers are much finer than regular wool, so the set feels soft and smooth directly on the skin with no itch.

Will I overheat once I get indoors?

Merino regulates temperature both ways. It insulates in the cold and breathes when you warm up, so you stay comfortable instead of sweaty.

How does it fit under riding gear?

The cut is slim like a true base layer, so the top and pants slide under jeans, leathers and textile gear without bunching. If you are between sizes, size up for a more relaxed fit.

How do I wash it?

Machine wash cold on a gentle cycle with wool safe detergent and lay flat to dry. Avoid hot water and tumble drying to protect the wool fibers.

What is included in the set?

One long sleeve crew neck thermal top and one pair of thermal bottom pants, both in khaki 100% merino wool.