Siena Big Buckle Oiled Leather Green Dark Teal The buckle at the ankle

The buckle at the ankle strap has been replaced by a hook-and-loop fastener

The color-coordinated footbed and the colorful tongue buckles round off the shoe's look of sophistication

hard-wearing synthetic material Birko-Flor® with a shiny patent coating

The color-coordinated outsole

Our elegant thong sandal combines optimum grip with minimalist

Siena Big Buckle Oiled Leather Green Dark Teal The buckle at the ankleThe BIRKENSTOCK Siena boasts a refined appearance. Crossed straps give the sandal its unique and special look. 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 extra thick, oiled nubuck leather with an open selvage finish. Anatomically