Each men long johns thermal set is lightweight and can be worn alone or under your regular clothes without any of the bulk. The Bodtek men's thermals will keep you comfortable and allow ultimate versatility in everyday wear. The poly-spandex blend of 92% ultra soft polyester and 8% spandex allows full mobility. The binding will keep your thermal men long-lasting with durable seams around the neck and sleeves for added stability. You can maintain your active lifestyle or lounge with comfort as our thermals offer you a lightweight base layer men without the bulk of multiple layers. You won't have to worry about skin irritation as your thermal underwear men are tagless for further comfort and no chafing. With these thermal sets, you can stay dry with our moisture-wicking technology. No matter the activity you participate in, your thermal set will keep you warm, dry, and comfortable.