The Reaction diffusion engineered knit mesh upper with Fit Weave delivers lightweight support. Featuring a FuelCell foam midsole for stability and cushioning and a durable yet flexible outsole, these New Balance FuelCell Trainer, women's performance training shoes in Stellar Blue are designed for comfort no matter the workout. A Fit Weave upper provides support and a clean silhouette, with a bootie construction and Ariaprene® tongue for impressive foot lock-in. Forefoot outrigger for added lateral stability. FuelCell foam midsole delivers a propulsive feel to help drive you forward. Lightweight solid rubber outsole with multi-directional reaction diffusion tread and conical forefoot lugs. No sew overlays deliver a sleek fit and feel. With Corded eyerow for lock-in and a custom fit. Built to perform from the gym floor to the turf to the concrete, the NB FuelCell Trainer can do it all.