The laces provide a snug fit. Nike’s Women’s Revolution 6 Running Shoes are designed for comfort and flexibility right from the start of your running journey. The shoes feature a plush mesh upper for a comfortable fit, additional skins for durability, and a foam midsole for a soft ride. The outsole has a computer-generated design that creates a natural piston effect as you run, providing more cushioning and flexibility. The shoes also have intuitive touch points at the heel and tongue for a natural feel, and the laces provide a snug fit.