Godsen Mens Cotton Thermal Underwear Sets Long Sleeved Base Layer 100%cotton rid180g/m2 100% cotton rid180g/m2 Comfortable and warm. Stylish. Sexy., Using advanced weaving technology, and a full environmental dyeing process with fabrics. Men's cotton Lycra thermal underwear sets bottoming Water temperature does not exceed 30 , not chlorine bleaching, ironing highest temperature 110 , not dry, not wring, hang dry Designed in DenmarK. More Humanized