From New Balance, the Men's Fresh Foam X Hierro V8 Trail Runners feature: Synthetic and mesh upper Upper features a breathable yet protected construction Lace up closure Synthetic lining Fresh Foam X with Bio Eva Fresh Foam X midsole foam delivers our most cushioned Fresh Foam experience for incredible comfort Micro-Traction Lug by Vibram®. Vibram® is a registered trademark of VIBRAM S.p.A All rights reserved Vibram outsole Approx. 0.24" drop Imported.