Women's Birkenstock Essentials Arizona Rubber Slides - Black - Flat sandals From Birkenstock, the Arizona Essentials Slide Sandals feature:Waterproof and lightweight EVA upperslide on with adjustable buckled strapsunlined construction - Birkenstock's contoured footbed supports the arches of your foot and cradles your heel for all-day comfort - EVA footbed - EVA outsoleflat heel - Birkenstock footwear is made in European whole sizes.