NIKE Free 5.0 Women's Running Shoes Mesh upper made with dynamic Flywire technology, which offers ultra-lightweight support, breathability, and a secure lockdown. Seamless inner bootie adds to an already pleasurable experience with it's plush and comfortable fit. Flex grooves in the phylon midsole allow your foot to move naturally in multiple directions. New flex pattern on the outsole offers six directions of motion for the most flexible outsole to date. Additional durability comes from strategically placed rubber lugs that give you traction and grip all run long.