The Siena sandal gives you a new take on the classic two-strap design, with crossover straps and an oversized, elegant pin buckle. Oiled leather gives you a perfectly lived-in look, designed to age beautifully with wear. This Semi-Exquisite style features a contoured footbed wrapped in luxuriously smooth leather for a premium touch you'll feel as soon as you step in.
- Contoured cork-latex footbed creates custom support with wear
- Oiled leather upper, colors may vary
- Semi-Exquisite footbed lining wrapped in smooth leather
- Lightweight EVA sole
- Two-strap design with oversized adjustable metal pin buckle
- “Made in Germany” quality stamp on footbed

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.
Outsole: EVA
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.