Thanks to the amphibious nature of the Chaco Ponsul Bulloo Water Shoe, transitions from land to boat and from boat to land have never been easier. Product FeaturesUpper Material: [straps] polyester webbing; [toe cap] TPUWaterproofing: Sole: Vibram BullooMidsole: ChaPU (polyurethane)Footbed: LuvSeatSupport Type: Construction: Lacing: strapWeight: Recommended Use: rafting, kayakingManufacturer Warranty: lifetime