The Siena is a crossed strap sandal by Birkenstock featured here in the fashionable "Big Buckle" version which provides an elegant pin buckle with a striking accent. The lining of the semi-exquisite footbed is covered with soft smooth leather and matches the sandal in color. The upper is made from extra thick, oiled nubuck leather.
- 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”
Insole: Natural leather
Natural leather can be recognized by its untreated surface. BIRKENSTOCK purposely does not treat surface grains and other characteristic features. BIRKENSTOCK uses sturdy leather with a thickness of 2.8 to 3.2 millimeters as upper material.
Footbed material: Cork
Cork is a sustainable material extracted from the bark layer of the cork oak. This natural product is insulating and offers very good cushioning.
EVA (ethylene vinyl acetate) is a high-quality, very light, elastic material with extremely good cushioning. As a result, it smooths out slight irregularities in the floor and ensures that every step is softly cushioned.