NIKE Women's Air Relentless 3 Mgnt Gry/Mtllc Slvr/Unvrsty Bl Running Shoe 6 Women US Synthetic-And-Mesh Rubber sole A running shoe built for the neutral to underpronator who requires enhanced cushioning Durable water repellent (DWR) treatment helps keep the elements out Air-Sole unit in the heel provides the right balance of cushioning for a smoother ride