Thermal Underwear for Men, Soft & Lightweight Base Layer
Cold mornings shouldn't mean wearing three layers. Designed for winter commutes, snowy sidewalks and chilly job sites, this thermal underwear for men sits close to the skin and slips under your everyday clothes.
Slim Base Layer
Goes under jackets and jeans without piling on bulk.
Flexible Thermal Knit
Stretches in every direction so reaching, bending and pedaling feel natural.
Most long johns are either too thin to keep the cold out or so thick you can't fit jeans over them. NY Threads thermal underwear for men is a close-fitting, lightweight base layer in a 4-way stretch knit that holds in warmth and wicks moisture, so you stay warm without the bulk.
Soft Stretch Fabric – 90% polyester, 10% spandex in a soft 4-way stretch, moisture-wicking knit that keeps you warm, dry and comfortable all day.
Thermal Top and Bottom – A crew neck long-sleeve top and tapered pants with an elastic waistband sit close to the skin to hold in warmth without restricting movement.
Lightweight Insulation – These men's long johns are made for cold-weather layering: skiing, shoveling snow, biking, outdoor work or staying warm indoors.
OEKO-TEX® Certified – Skin-friendly fabric with no risk of hazardous substances. Tested for California Prop 65 compliance.
Convenient Care – Machine wash cold, tumble dry low. Avoid high heat to keep this base layer soft and in shape.
Not sure what size to choose? Check out our Size Guide