The Nike Shox Inferno running shoe features an updated mid-90's Air Max Triax upper that now has Shox™ technology under the heel to give the runner a highly resilient cushioning system that will last for miles. Mesh/synthetic upper, full-length Phylon™ midsole. BRS 1000™ carbon rubber outsole offers durability and traction. Wt. 14.0 oz.