Lightweight breathability - Mesh upper Locked-down fit - Forefoot cables Flexible grip in every direction - Traction pattern Lightweight, flexible cushioning - Injected unit sole (IU) material Ventilation and helps reduce lace pressure on top of the foot - Padded sandwich mesh tongue Hit your next workout with the flexible support of Nike's Flex Trainer 7 Women's Cross Trainer. This lightweight, breathable shoe offers a supportive platform that's engineered for flexibility and traction. Inspired by the classic Roman sandal, the design incorporates forefoot cables for a secure, locked-down fit.