RunFlyte Women's RF Windflyte Running Shoes Synthetic Knit-Flyte textile upper with ultra-breathability Lightweight EVA outsole with zigzag pattern for traction and durability Heel pull-on tab for ease and comfort and super lightweight for a smooth ride Foam footbed with removable padded outsole for superior cushioning upon impact with the ground Shoe Weight: 5.6 oz (Women's Size 8.5)