Mens thermal underwear is a lightweight thermal set of both a thermal top and bottom made of a poly-spandex material that will wick away moisture to keep you dry with no sticky or clammy feeling so you can wear them all day. Made of premium fabric, thermals for men have smart odor control to prevent the spread of smells as well as absorbing odor-causing enzymes so they won??t stick to your skin. You can remain confident that wearing these all day won??t cause any problems. Built with flexibility, the thermal underwear is highly stretchable to offer full mobility. The fabric won??t hinder your movements so you can move freely while at the gym, office, or home. They are perfect for all activities and will keep you comfortable. Men thermal underwear set is soft against the skin, yet its strong seams won??t rip or tear prematurely, offering long life. They fit snug like a second skin for perfect heat retention minimizing heat loss for an ideal base layer or worn on their own. For even more added comfort, long johns for men thermal have no tags, which reduces any skin irritation. You can slip them on and off easily and can be worn under your clothes for added insulation and at the gym for added support and movement.