ColdPruf Women's Basic Long Sleeve Base Layer Shirt - The BASIC 2 layer engineering traps air between the layers providing a natural barrier or warmth. The inside and outside layers are a blend of 60% combed, ring spun cotton, 40% polyester offering the comfort and warmth you deserve. The Basic has been designed for wear in Cold to Very Cold Weather with Low to Medium Activity. The BASIC delivers comfort and warmth in all cold weather environments, whether at home, on the job or enjoying the great outdoors. 2 Layer Flat Seamed Hemmed Cuffs Tagless Style: 50A