Built to perform, sweat after sweat. The Metal Vent Tech collection, powered by seamless construction, is the ultimate gear for running and training. Designed for Training. A streamlined fit that skims your body. More wearing, less washing. Silverescent technology, powered by X-STATIC, inhibits the growth of odour-causing bacteria on the fabric. 'Wash with like colours', 'Machine wash cold', 'Do not bleach', 'Tumble dry low', 'Do not iron', 'Do not dry clean', 'Imported'. Skip-the-Chafe, Seamless Construction. All: 49% Nylon, 43% Recycled polyester, 4% Elastane, 4% X-static nylon.