Give your junior explorer the same cool summer comfort you wear every day when you tighten the Chaco Little Boys" Z/1 Kids Sandal to his foot. For hikes, creek walks, or as an everyday summer sandal, the Z/1"s Addstride footbed provides all-day comfort and a flop-free fit after he easily tightens the polyester strap"s slide-lock buckle. Product FeaturesUpper Material: [strap] polyester webbingWaterproofing: Sole: EcoTread (25% recycled rubber)Midsole: ChaPU (polyurethane)Footbed: AddstrideConstruction: Lacing: strapWeight: Recommended Use: summer casual, hiking, water shoesManufacturer Warranty: lifetime