The BIRKENSTOCK Siena boasts a refined appearance. Crossed straps give the sandal its unique and special look. The tonal footbed rounds off the shoe’s look of sophistication. The upper is made from high-quality nubuck leather.

*Anatomically shaped cork-latex footbed
*Width: Narrow - Birkenstock's Medium/Narrow fits most women comfortably and is similar to most Regular widths from other brands.
*Upper: nubuck leather
*Footbed lining: microfiber
*Sole: EVA
*Details: two straps, one with an individually adjustable metal pin buckle; tonal footbed
*Made in Germany

Upper: Nubuck: Nubuck leather has a gently buffed surface with no grains. As with velvet, brushing the surface of nubuck leather displaces the fibers and leaves a visible mark. Nubuck leather is very sensitive to moisture and color, and it therefore needs to be waterproofed.

Insole: Microfibers - Microfibers are a very fine synthetic fibers that are extremely soft and shape-retentive. Because they are free of animal products they are used as the covering material for the lining of footbeds in vegan products, among other things.

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.