Liberate NITRO keeps you light on your feet with an effortless ride. Form fit around PUMA's new performance last, Liberate NITRO offers a great fit executed in a sturdy mono-mesh. A one-piece, NITRO midsole delivers just-right cushioning with great responsiveness for tempo runs and competition. To keep you steady and seen, Liberate NITRO has a TPU heel piece providing proprioception, and strategically placed PUMAGRIP for all-surface traction. Distinctive design options aren’t enough. We want to be the first brand to create a specific last for women’s running shoes that take her into consideration—shape, fit, and contour. Our new women’s running shoes are made to fit the profile of the female foot so she can run in comfort and reach her goals with a narrowed heel, lower instep, and adjusted women's arch ratio.