Lightweight, breathable synthetic upper with PU inserts in high abrasion areas for added protection and durability. Traction loops on heel and tongue for easy on and off. Contoura molded soles Anti-fatigue support with shock-absorbing foam Durable Vibram XS Trek outsole responds to unpredictable terrain with great flexibility and wet grip. Full-length Charged Cushioning midsole for lightweight, shock-absorbing comfort. The compatible arch with fast cords resists wear and tear caused by ladders and climbing rapide.