Avia - A2021m (White/Submarine/Performance Grey/Royal Blue) - Men's: For the mid-to-high mileage runner seeking a blend of stability and cushioning. Lightweight synthetic leather and mesh with reflective features. Removable molded Durapontex sockliner. Compression molded EVA. DCS Ultra(R) combines AVIAs Dual Cantilever System with a TPU Shank that provides torsional support and superior ventilation. Caged DCS in the heel delivers maximum cushioning at support and the point of greatest impact. Forefoot Air Chamber for superior performance and cushioning in the critical forefoot impact area. Provides a smooth toe off in the running stride. Anatomical Cradle(R) literally cradles the foot to allow maximum shock absorption first by the shoe and then the natural fat pads of the foot. Solid rubber outsole with vented TPU shank.