Your potential-unlocked. The Metal Vent Tech collection, powered by seamless construction, minimizes distractions from chafe and sweat so you can stay laser focused. Designed for Running and Training. Designed to skim the body from chest to waist:Updated Fit: We've rebalanced the fit of this shirt to have slightly more room in the chest for freedom of movement and less cling. More wearing, less washing. Silverescent technology, powered by X-STATIC, inhibits the growth of odour-causing bacteria on the fabric.