EUC boys Nike slip on shoes. Black and grey color. Size 4. Smoke free home. Get moving quickly and comfortably when you wear the Nike Big Kid's Flex Runner 2 Slip-On Running Sneakers. They slip-on easily thanks to their bootie design, and stay put thanks to the snug midfoot and heel straps. Stretchy bootie design is easy to put on and take off Grooved, flexible foam sole for natural-feeling steps Back of shoe features foam wing for extra stability Breathable fabric keeps feet cool Reinforced toe tip for extra durability Pull tabs on heel and tongue