Release your competitive edge with the adidas Ultra Boost Uncaged — a fast, comfortable running shoe that looks as good as it feels. The lightweight adidas Ultra Boost Uncaged trades in the midfoot cage of the original Ultra Boost for a more minimal, sock-like fit that molds to the shape of your foot and moves with you as you run. The shoe's seamless Primeknit upper is paired with a deconstructed knit collar, creating a barely there feel that turns the shoe into an extension of your foot. Seamless Primeknit upper for a snug, sock-like fit that stretches and moves with your foot for a truly one-to-one fit. Knit collar creates a soft, sock-like opening, helping the shoe fit as an extension of your foot. Full-length boost midsole cushioning is ultra light and ultra responsive, absorbing the force of impact and returning that energy at toe-off, propelling you to a faster, more comfortable run. TORSION SYSTEM adds lightweight stability, encouraging a smooth, more natural transition from heelstrike to toe-off. 10mm offset. StretchWeb outsole construction adapts to your unique footstrike, allowing the boost midsole particles to freely expand and contract with the natural movement of your foot. Wt. 8.9 oz.