All mules and sandals of Haflinger’s ‘Bio’ series have one thing in common: they are made of high quality genuine leather, which has been purely vegetable tanned on the inner surface. The dispense with chemicals makes the material particularly gentle and skin-friendly, despite maintaining its natural durability. Typical for all the leather models is a thick, anatomical footbed made of natural cork and latex. It further and further adapts to your feet during the course of wearing, resulting in perfectly cushioned steps. On top of that, your feet muscles are actively supported. Therefore, the model can be worn for hours without losing any of its comfortable feeling. The outer soles are made of firm rubber and have slip-inhibitory profiles. They are very solid and fully suitable outdoors as well.