Birkenstock Women's Gizeh Black Thong Sandals, Size 37 (US 6.5) Condition: pre-owned condition. Light wear. No major wear or damaged areas. See Photos for actual item being sold and condition. Size: Marked EUR 37 - approx. US 6.5 (L- 9.44 in (240mm), W- 3.75 in) Length measurement is taken from the full length of the inside of the shoe. Please message me if you have any questions about the item.