Chatham EVAAvailable for pick up at store location. Though they look & feel like their cork versions, they are waterproof! They do run more true to size so you likely need to size up from the cork version. *Please take one size bigger than your Birkenstock size if you wear Birkenstock* Womens EVA two strap two tone sandal Two adjustable plastic buckle closures Fits half size small Upper footbed sole: 100% one piece EVA Waterproof, washable, ultra lightweight