Fabric wears like a second skin so you get the same powerful compression. Smooth fabric provides extreme comfort and compression without restriction. Keeps the muscles warm to prevent muscle strain. Improved blood flow from graduated compression. Increased muscular strength with less energy expenditure. 4-Way stretch fabrication allows greater mobility and maintains shape. 72% nylon/28% spandex. Anti-odor, anti-bacterial. Spf-50. Grey color