Saucony Hurricane ISO 2 running shoes are excellent support shoes that provide a plush and stable fit. This version is enhanced with EVERUN topsole technology for continuous cushioning that you can rely on from your first to last step. In addition, new TRI-FLEX works with EVERUN to optimize your force dispersion for more even protection. You'll love the updated color options.Upper: ISOFIT combines a soft inner sleeve and a floating cage to create a dynamic fit system that adapts to the shape and motion of your foot. Lightweight Support Frame locks the heel in place for a secure, stable fit. RUNDRY Lining combines superior moisture wicking properties with a plush feel for comfort. Padded tongue and heel collar enhance comfort. Flat laces reduce irritation.Midsole: EVERUN provides a lively, resilient ride while offering continuous cushioning and enhanced energy return properties. PWRGRID+ is over 20% more cushioned and 15% more resilient than a standard POWERGRID construction, providing a plush feel, responsive ride and superior impact protection. Dual density medial post delivers a touch of stability. EVERUN Landing Zone. Outsole: Tri-FLEX outsole provides increased force dispersion over a greater surface area while also delivering optimal flexibility and traction. iBR+™ is 33% lighter and provides more cushioning compared to standard blown rubber. XT-900™ premium carbon rubber outsole material offers exceptional traction and high-wear properties.