• Full-length FuelCell midsole delivers our highest energy return of our performance foams currently on the market
• NDurance rubber outsole technology provides superior durability in high-wear areas to help get more out of the shoes
• Bootie upper construction hugs your foot for a snug, seamless, supportive fit
• Upper features sandwich mesh, translucent textile and stitched-down synthetic overlays to add depth
• No-sew overlays for a sleek fit and feel