Birkenstock Sport Narrow Insole (Unisex) - Blue F22KEENmap Although light and sleek

Although light and sleek

Removable "4D Technology" footbed with four different densities developed in Germany

premium leather upper for durable protection against the elements

The elastic sides of this shoe allow it to fit perfectly to your foot

Adjustable hook and loop closure for a secure fit

Birkenstock Sport Narrow Insole (Unisex) - Blue F22KEENmap Although light and sleekThe Blue Footbed utilizes the principle of walking barefoot. It is based on the impression left by a healthy foot in sand, creating a natural environment for your feet. The heel area is cushioned and stabilized thanks to the raised design. This also supports the natural arch of the foot. The Blue Footbed is therefore ideal for anyone who would like to enjoy the unique comfort of BIRKENSTOCK in enclosed shoes made by other brands too. Anatomical