Birkenstock Gizeh EVA Ladies Khaki Sandals Size: 39. Fit: Regular fit. Color: Khaki. (Army green) Material: Synthetic. The Birkenstock Gizeh is a lightweight and easy-going classic slip-on sandal for all your warm weather on-the-go adventures, especially favored for the beach or poolside. The Gizeh EVA features uppers made of water-friendly EVA, with an adjustable buckle strap for a secure fit. A classic Birkenstock anatomically shaped footbed offers superior stability and arch support. EUC - Worn once