Running Shoes Release your competitive edge with the adidas Ultra BOOST Uncaged — a fast, comfortable running shoe that looks as good as it feels. Primeknit upper and knit, sock-like opening move and stretch with your foot for a breathable, comfortable fit. Full-length BOOST™midsole returns energy with every step, propelling you to a faster run. TORSION SYSTEM creates a smooth transition from heelstrike to toe-off, resulting in a more natural running stride. Stretch Web outsole for durable traction that adapts to any surface. Wt. 9.8 oz.products_model:O11V3375nMen's Shoes - adidas Ultra Boost Uncaged Scarlet/Solar Red/Black - O11V3375n