Stiffness is no longer the price to pay for support. Introducing the successor to the Hurricane ISO 3 which raises the bar, the Hurricane ISO 4. This updated running shoe features a full-length EVERUN midsole and topsole for enhanced energy return continuous cushioning for every run and ISOFIT dynamic lacing adapts to motion of the runner's foot. This results in a running shoe which is beautifully plush and flexible feel but hasn't lost an ounce of stability. Overview ? Successor to the Hurricane ISO 3 ? Full-length EVERUN midsole ? EVERUN Topsole construction for enhanced energy return and continuous cushioning for every run, all run long ? Medial posted midsole ? ISOFIT system creates a dynamic fit by adapting to the shape and motion of the runner's foot ? Engineered mesh Specs ? Shoe Category: Guidance ? Pronation: Moderate, Severe ? Cushion: Plush ? Construction Type: Stability ? Surface: Road, Track ? Arch: Normal (Mid), Low ? Water Resistant: No ? Waterproof: No ? Offset: 8mm ? Heel Stack Height: 28mm ? Forefoot Stack Height: 20mm ? Weight: 11.2 oz. | 318 g.