The Hot Chillys Womens Micro Elite Chamois Crewneck Top is your "go-to" for technical base layers. For years Micro-Elite Chamois has been the leader in body fit, technical base layer by incorporating intimately blended fibers with specific attributes to continuously keep you warm, comfortable and dry. Knit in a single smooth face and napped back for easy layering and extra warmth without adding bulk. The body fit design allows full range of motion without any restrictions. Intimate blend of enhanced polyester and spandex fibers Moisture Transfer Fibers to move moisture away from the skin 4-way stretch for unlimited movement Smoothe face for easy layering Soft to the touch Comfortable, non-binding Undeniably warm Body fit design for next to skin performance fit Active to aggressive lifestyle styling UPF 30 protection Crew neckline with self-binding Seams set away from shoulder for added comfort