This everyday cushioned road runner has a breathable and structured engineered mesh upper for ultimate comfort and all-day wearability. Fresh Foam X midsole foam with approximately 3% bio-based content delivers our most cushioned Fresh Foam experience for incredible comfort. Structured yet breathable upper Received the Seal of Acceptance from the American Podiatric Medical Association (APMA) 236 grams (8.3 oz) Synthetic materials