Lightly used (only a few times!). Minor wear that’s barely noticeable, essentially not broken in. Priced accordingly. Details: FuelCell midsole foam with approximately 3% bio-based content delivers a propulsive feel to help drive you forward. Bio-based content is made from renewable resources to help reduce our carbon footprint. Energy Arc pairs sport-specific carbon fiber plate geometry with strategic midsole voids, designed to increase stored energy to deliver a higher amount of total energy returned. Angular midsole design reduces weight. Outsole designed for superior traction. 271 grams (9.6 oz). Specs: 4 mm drop; due to variances created during the development and manufacturing processes, all references to 4 mm drop are approximate. Lace closure. Upper features no-sew overlays for a sleek fit and feel.