The Nike Flex Trainer 3 is made for the female athlete who wants a lightweight, breathable, and flexible training shoe. Mesh and foam upper provides superior comfort and support that's specific for multidirectional training. Injected Phylon™ midsole adds lightweight cushioning while reducing the weight of the shoe. Midsole wrap in the forefoot integrates with the laces to add support and stability. Multidirectional flex grooves were designed to enhance flexibility specific to training and allow the foot to move naturally. Minimal solid rubber pods are placed on the heel, forefoot, and toe to deliver extra durability and multidirectional traction. Wt. 9.4 oz.