Women's Inversion Colorblock Merino Wool Base Layer Shirt EASY TO WEAR: Easy to put on or take off, this thermal undershirt for men has a soft brushed lining for added comfort. Enhance your Astrophotography and fight light pollution with OPT's wide selection of light pollution filters. Shop now for lowest pricing Matador Base Layer RefrigiWear Insulated Jacket Style 15 Color Navy XL Thermal Base Layer Men Extreme Cold THE PERFECT FIRST LAYER: Easily withstand freezing temperatures with this thermal top. 160g 4-Way stretch base layer; Stretch jersey knit with brushed lining for added comfort; Open fly. Get lightweight long underwear that packs a heavyweight... The fabric has a 240-gram 4-way stretch that gives a close, comfortable, non-constrictive fit for all-day warmth and movability. Heavyweight Mid-Layers from RefrigiWear give you added warmth for the coldest jobs and can help a jacket or bib overalls feel 7°F to 15°F warmer, depending on your activity. Let us help you own the cold with our line of insulated and thermal clothing and equipment designed to protect you from freezing conditions. COMFORTABLE MEN'S UNDERSHIRT: This long-sleeve top for men is made from a strong and supportive 92% polyester and 8% spandex fabric blend for optimum stretch. The stretchy thermal shirt can be worn close to the skin for your first layer of warmth, and it moves with you as you work in freezing weather. Each top features a classic raised crew-neck collar for extra protection, helping keep the warmth in and the cold out. It features flat seams for a low-profile fit that minimizes friction as you build warm layers to stand up to any cold work environment.