Design: Revolutionary TechLoom upper construction is seamlessly woven from performance textiles that results in an exceptionally fitting one-piece upper Support, breathability, flex are all strategically engineered and placed in key areas where they are needed most In-Shoe Comfort: Proprietary Propelium® midsole provides energy generation and superior comfort that will maintain structural integrity longer than conventional EVA Standard normal width with a slightly wider toe box Durability and Traction: Outsole incorporates natural motion flex grooves that react to your every movement Additional Details: 100% Vegan Weight: 7.9 oz 8mm drop from the heel to the forefoot places your foot in a natural running position