Skins Men's RY400 Compression Long Sleeve Recovery Top 76% Nylon/24% Spandex Imported SKINS Dynamic Gradient Compression to boost muscle recovery Biomechanically positioned panels and seams to help maximize comfort and support during rest Flexible, flatter A-seams for ultimate comfort and minimized bulk Mesh panels for enhanced, targeted breathability SKINS Performance Compression: It's equipment, not clothing