Baleaf Men's Compression Baselayer for Workout Gym Training Running 72% Nylon 28% Elastane Compression fit offers support to thigh muscle to improve performance. Four-way stretch fabric provides a smooth silhouette and flexibility; Recommand order 1 SIZE UP Moisture-wicking material wicks sweat away and dries fast Soft fabric delivers extreme comfort Flatlock seams prevetnt chafing