Birkenstock GIZEH Straps are made of Birko Flor, Birkenstocks trademark synthetic material easy to clean with soap and water. The backing of the straps is a soft felt. Classic Footbed Color: I'm calling it Graceful Pink as it has a slight shimmer like many of the "Graceful" Birkenstock colors. Size EU 40 US W 9 M 7 REGULAR width I purchased online as preowned. It shows almost no signs of wear with only slight marks like they were tried on. I have never worn, haven't fastened the straps. I'm selling as I have a similar color Gizeh and I need to downsize These are cross listed on ebay.