Reebok Women's Nano 9 Cross Trainer White/Skull Grey Materials: Flexweave Technology weaves fibers into a figure-8 to create a strong, flexible upper. Designed for: Varied CrossFit WODs and other training. All new soft rubber midsole protection wrap. Added cushioning in forefoot for running and comfort. Bootie construction provides ultimate performance comfort. Forefoot flex grooves for flexibility. Low-cut design for added mobility Reebok Women's Nano 9 Cross Trainer White/Skull Grey