Upper: Water friendly synthetic strap with super soft padded jersey lining. Footbed: Compression molded high rebound EVA with a built-in airbag under foot for added comfort. Outfitted with anatomical arch support to keep you comfortable through every adventure. Features a bottle opener built into the footbed to open your \'soda\' after a surf session or hanging at the pool. Outsole: Non-Marking Rubber Outsole with Bottle opener so that no party may go unquenched. Product Code: CI6589