CW-X Women's Muscle Support Performx Full Length Compression Tight 2-Way Stretch Support Web Nylon 80%, Lycra 20% ; 4-Way Stretch Body Fabric Coolmax 80%, Lycra 20% Imported UPF 50+ for UVA/UVB protection Flat seam construction eliminates abrasion increases comfort and enhances fit Women's specific design and pattern for a better fit for the female anatomy in motion Reflective logo increases visibility in low light conditions