BIRKENSTOCK. 1018 753. GIZEH BIG BUCKLE NATURAL LEATHER. BLACK. The BIRKENSTOCK Gizeh is a genuine classic that combines optimum grip with minimalist fashionable design. The Big Buckle version features a large elegant pin buckle -- a fantastic striking eye-catcher on this otherwise understated sandal. The lining of the semi-exquisite footbed is covered with soft smooth leather and matches the shoe in color. The upper is made from high-quality soft natural leather.