The Birkenstock Siena Big Buckle has a crossed strap that gives the sandal a unique and polished look.  The lining of the footbed is covered in smooth leather that matches the shoe color.

• Anatomically shaped cork-latex footbed; semi-exquisite
• Upper: oiled nubuck leather
• Footbed lining: smooth leather
• Sole: EVA
• Details: two straps, one with an individually adjustable metal pin buckle; color-coordinated footbed
• “Made in Germany”