The North Face El Rio Shoes for Boy - Go with the flow with El Rio! ; This amphibious sandal features a water-resistant, synthetic nubuck upper. Recessed hook-and-loop closure system for easy on and off. Removable heel strap allows you to convert to a slide. Nylon midfoot shank for underfoot support. EVA midsole keeps feet comfy. HydroTrak® water-channeling, sticky rubber outsole provides traction on a variety of surfaces. Weight : 5 oz ; Product measurements were taken using size 2 Youth. Please note that measurements may vary by size.