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. Midsole features an increased stack height for added cushioning Fully printed upper is protective yet lightweight Vibram outsole provides superior grip. Vibram is a registered trademark of VIBRAM S.p.A All rights reserved. GORE-TEX waterproof fabric protects feet from wind, rain and water without sacrificing breathability