Break the sound barrier. For the Adidas Men's Adizero Ubersonic 2.0 Tennis Shoes, they took one of the fastest tennis shoes in the adidas line-up and upgraded it for comfort. This version is just as light, quick and low-to-the-ground as the originals. But the upper now has a sock-like construction that's soft and seamless. FEATURES: Lace closure Two-layer stretch mesh upper with Adituff toe Adiprene+ forefoot cushioning Stable all-court tennis shoes Supportive, lightweight Sprintframe and adaptive 3D Torsion system Weight: 350 g Adiprene heel cushioning and Adiwear 6 outsole Adidas Shoes FU9468