HYPER BURST ICE cushioning features dual-density HYPER BURST technology for a soft and stable run Carbon-infused H-plate delivers exceptional stability and energy return with an ultra-high stiffness-to-weight ratio Patented Skechers Arch Fit insole system, this design has been granted the Seal of Acceptance by the American Podiatric Medical Association (APMA) Skechers Hands Free Slip-ins for an easy fit Weight: 11.9oz in a men's size 9, stack height: 42mm - 36mm (6mm offset)