The Under Armour Dynamic Select Training Shoe is designed for versatile athletes. It combines the responsive cushioning of a running shoe with the stability and traction of a lifting shoe, ensuring you can tackle every workout - from sprints to squats - without compromise. Upper, Lining, Sock & Sole: Other Materials. They are durable, breathable, cushioned, and give you the right support, workout after workout. Features include a lightweight, super-durable ripstop upper, a molded TPU clip for added lateral support, a cushioned sockliner that molds to your foot, eliminating slippage & providing ideal underfoot comfort, a Charged Cushioning® midsole that absorbs impact & converts it into a responsive burst, and a durable rubber outsole with strategically placed flex grooves for multi-surface traction & flexibility.