US Size 11.5 Wide Fresh Foam X midsole foam with approximately 3% bio-based content delivers our most cushioned Fresh Foam experience for incredible comfort. Bio-based content is made from renewable resources to help reduce our carbon footprint. Engineered mesh for breathability and a supportive fit Adjustable lace closure for a customized fit 4 mm drop; due to variances created during the development and manufacturing processes, all references to 4 mm drop are approximate