DetailsThis athletic style features Anti-Gravity technology. It's lightweight feel is (less than 12 oz. per half pair for size 8) due to millions of air bubbles in it's midsole and insole. There is a 1.5" molded, dual density midsole for shock absorption and an "Easy-Trax Rubber Outsole" for traction and durability. There is also a patented "elastic" adaptive fit stretch upper panel with flexibility to provide you with outstanding comfort.