Description of Hot Chillys 9412 Low Rise Bottoms - Women's These tights provide moisture transport to keep your skin dry and to promote warmth and inherent anti-microbial properties to eliminate bacteria and odor. Get out there, stay warm, and keep playing. Features: Bi-component blend of, 29% Bio-Silver® polyester, 60% polyester, 11% Lycra Contoured body fit Flat seam construction for seam strength and to eliminate abrasion UPF rating of 30+ Warmth Factor = 8 Lightly sanded face for softness and warmth