Below is an explanation of the materials used in Birkenstock shoes and sandals:
 

• SMOOTH LEATHER: Our smooth leather feels very fine and even and has a slightly shiny surface. Thanks to its high elasticity, tensile strength and resistance to abrasion, it is durable against external influences, thus guaranteeing a long life. Moreover, it is maintenance-friendly and breathable.
• BIRKO-FLOR: Birko-Flor is a skin-friendly, tear resistant, easy-care material. The upper layer of this material has a leather-like structure, the lower layer is processed with soft felt.
• BIRKO-FELT: Birko-Felt is made of a wool pulp mixture and synthetic fibre felt. As a result, the tissue together can practically not tear and it is still air-permeable and skin-friendly.
• BIRKO-FLOR NUBUCK: Gives the material of the surface layer a special finishing process which does not only look like leather, but also feels like it.
• PATENT LEATHER: Maintaining all positive characteristics of the natural leather, patent leather has an upper layer with a fine coat of paint.
• NUBUCK LEATHER: The natural surface of the leather is buffed. This gives the leather a velvety appearance.
• GRAINED LEATHER: Birkenstock leather gets a particularly expressive strength due to the special bark optics.
• SYNTHETIC: Synthetic is a term for all artificially developed materials, which are characterized by durability and diversity.
• ALPRO FOAM: Alpro-Foam is mainly used for the production of beach sandals and leisure clogs/sandals. The raw material consists of a granular material which comes into the desired shape by heat. This makes Alpro-Foam particularly soft and elastic. The foot is supported by the foot bed with each movement. Alpro-Foam also has shock resistance and anti-slip qualities. This depends on the model. Alpro-Foam is shock-resistant and is therefore used in sandals with soft foot beds.
• ALPRO-CELL: Alpro-Cell is lightweight, flexible and multifunctional. Alpro-Cell is mainly used for beach sandals and leisure clogs/sandals. With the low weight of Alpro-Cell, it is hardly noticeable that you have shoes on your feet. Alpro-Cell products are ideal for the holiday, the pool and/or beach.
• PU: PU is mainly used for the production of beach sandals and leisure clogs/sandals. PU is very soft and elastic. The foot is supported by the foot bed with each movement.  For example, PU also has shock resistance and anti-slip qualities. This depends on the model.
   
• EVA: EVA is an elastomeric polymer that produces materials that are "rubber-like" in softness and flexibility. The material has good clarity and gloss, low-temperature toughness, stress-crack resistance, hot-melt adhesive waterproof properties, and resistance to UV radiation. The lightweight EVA is ideal for sandals.
• MICROFIBER: The high-quality microfiber which is used for the Birkenstock shoes has a delicate, nubuck leather-like appearance. This material is very light, very breathable, durable and comfortable on the skin.
• ELASTIC: The elastic Birkenstock uses is made of textile-like elastic material. The elastic is of high quality and has a strong stretch so that it does not loosen quickly. It has a soft and comfortable feeling.