Seamless construction, Silverscent technology, and strategic venting make this shirt training-session ready.Sweat wicking fabric is 4 way stretch.Silverescent technology, powered by X-STATIC, keeps your shirt smelling fresh. Mesh venting encourages airflow and keeps you cool.Seamless construction reduces bulk to help prevent chafing49% Nylon, 43% Recycled polyester, 4% Elastane, 4% X-STATIC nylon.