Mens Thermal Underwear Set, Fleece Lined Cotton Long Johns, Black

This mens thermal underwear set gives riders a warm, low bulk base layer for cold weather. The 2 piece set pairs a long sleeve thermal top with matching fleece lined cotton long johns in black, built to keep body heat in while you stay comfortable on the bike, at work or around the house.

Why Riders Choose This Thermal Underwear Set

• Fleece lined warmth: a brushed fleece interior traps heat against your skin on cold rides and winter mornings.
• Breathable cotton knit: soft, flexible fabric that moves with you and does not overheat once you warm up.
• Low bulk base layer: slim fit slides under riding gear, jeans, leathers or work clothes without restricting movement.
• Secure high waist pants: the long johns stay in place so you get full coverage from first mile to last.
• Complete 2 piece set: matching top and bottom in classic black, sizes L to 3XL.

Built for Cold Weather Riding and Everyday Winter Wear

Wind chill on a motorcycle makes 50 degrees feel like freezing. A proper thermal base layer is the difference between cutting a ride short and riding all day. Wear this set under your motorcycle jacket and riding pants for fall and winter rides, or on its own as warm loungewear and winter pajamas. It also works for hunting, camping, snow days and outdoor work in the cold.

What You Get

• 1 long sleeve thermal top, black
• 1 pair of high waist thermal long john pants, black
• Material: knit cotton blend with brushed fleece lining
• Sizes: L, XL, 2XL, 3XL

Riding in serious cold? Add a heated layer from our heated motorcycle gear collection on top of this base layer for all day warmth.

Frequently Asked Questions

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

Yes. The fleece lining traps body heat while the cotton knit stays breathable, so it works as a true cold weather base layer for riding in fall and winter temperatures. For extreme cold, pair it with a windproof outer layer.

Will the set fit under my riding gear without feeling bulky?

It is cut as a slim base layer, so the top and long johns sit close to the body and slide easily under jeans, leathers or a riding suit without restricting movement.

What material is this thermal set made of?

It is a soft knit cotton blend with a brushed fleece interior. The fleece side sits against your skin for warmth and comfort, while the knit exterior stays smooth under outer layers.

Does the set include both a top and bottoms?

Yes. This is a complete 2 piece set: a long sleeve thermal top and matching high waist long john pants in black.

How do I pick the right size?

The set runs in sizes L through 3XL. Check the size chart on this page and, if you are between sizes or want a looser fit for layering, choose one size up.

How should I wash it?

Machine wash cold with like colors and tumble dry on low. This keeps the fleece lining soft and helps the set hold its shape ride after ride.

Every order ships with fast tracked shipping and a 30 day money back guarantee. Gear up with ALR and take the cold in stride.