The Grainau boot is built to last and is crafted with a repairable midsole and storm-welt, featuring Deep Blue Footbed technology and Vibram soles for enhanced comfort and grip. Made from vegetable-tanned leather with a water-repellent finish, it's expertly assembled in Germany.
Upper: Leather, flesh side out
Footbed: Deep Blue Footbed
Sole: Traditional Vibram rubber outsole
Branding: BIRKENSTOCK branding in sole
Packaging: Exclusive brown heritage packaging with “Schuh Bertl” engraving
The natural leather that we use is mostly smooth leather, in some cases tumbled leather. This type of leather has many special characteristics, such as breathability, adaptation to the shape of the foot and durability.
Insole: Microfibre
Microfibre is a skin-friendly material which is soft and yet tear-resistant. 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: Polyurethane
Polyurethane (PU) is a flexible, water- and dirt-repellent synthetic material which makes footwear easy to care for.
Outsole: Rubber
Because of its high elasticity rubber is very well suited for outsoles. Thanks to this property it supports the natural rolling motion of the foot. Rubber is also very robust and has good cushioning.