Nike Flex Trainer 5 Women’s Training Shoe Nike Flex Trainer 5 Women’s Training Shoe pairs a stable, dynamic upper with a supportive platform designed for multidirectional flexibility. A leather overlay at the heel provides lateral support, while its soft foam lining enhances comfort. Single-layer, translucent mesh upper provides lightweight breathability. Webbed straps integrate with the laces to provide lockdown. Soft foam lines the collar for comfort and support. Leather overlay on the toe tip enhances durability. Hexagonal outsole pattern enhances flexibility in all directions. Notched eyestays allow the upper to flex with the foot. Strategically placed no-sew overlays provide training-specific support. A leather overlay at the heel provides lateral support.