Features and Benefits Anti-Microbial--Anti-microbial treatments provide permanent odor protection by inhibiting the growth of bacteria and mildew in the fabric. UV Protection--Fabric is treated to block UV (ultraviolet) radiation from the sun, helping to prevent sunburn. Flatlock Stitching--Seams are sewn flat to the garment to enhance durability and prevent skin chafing/irritation. Key Specs Fabric Content: 82% nylon, 18% Lycra(r) spandex