EXSQUISITE VERSION WITH PREMIUM LEATHER. made in Portugal. The Birkenstock Papillio Gizeh Black Platform Thong Sandals are a stylish and comfortable choice for women in size 40 (L9/M7) US 9. These sandals feature a platform design that offers added height while still maintaining a secure and comfortable fit. The thong style and Birkenstock quality make these sandals perfect for casual wear or adding a trendy touch to your outfit.