Nike Flex Train - Men's Cross Training Shoes: Black/Black: ; Lift. Run. Move. In the Nike Flex Train shoe, you have the freedom to choose your own workout adventure. Its all-purpose attributes unlock a wealth of training options, thanks to a flexible outsole and lightweight upper. The rubber outsole comes with built-in cutouts for flexibility. And there are thin slits in the forefoot for added flexibility. The upper is made of mesh for lightweight, breathable support. The mesh collar gives you soft comfort around your ankle. ; Polyester lining and rubber insole. ; Lace-up closure. ; An elasticized band around the heel supplies added support. ; Low-top style. ; Round toes. ; A full-length foam midsole offers comfort and cushioning. ; Rubber outsole. ; Imported. Measurements: ; Heel Height: 1 2 11 in ; Weight: 10 oz ; Product measurements were taken using size 9.5, width D - Medium. Please note that measurements may vary by size.