Withstands quick submersions and will float if dropped in the water Earth-friendlier PVC-free materials Ideal for sea kayaking, the Kodiak Window Dry Bags feature a translucent urethane window that gives a glimpse into your bag without sacrificing privacy. A low-profile purge valve offers increased compressibility and snag-free packing. A tough, lightweight nylon with a heavy-duty round bottom stands up to heavy use and a Dry Seal closure ensures the best protection.