Anatomically shaped cork latex footbed. Non-slip oil and grease resistant outsole, tested according to EN ISO 13287:2007, SRC. Birko-Flor is made from an easy-care and hygienic PVC plastic, which has been bonded on the inside with a soft, breathable layer of fleece. Thanks to the individually adjustable straps with metal pin buckles, the sandal offers exceptionally good grip and comfort. The skin-friendly, flexible leather insole gently clings to the foot and adapts to its contour. Open-pored and therefore particularly breathable surface allows a pleasant foot climate even during heavy physical activity. Particularly deep shape in the heel area supports the foot tissue and keeps the heel bone stable in its natural position - for an almost similar strong hold as in a closed shoe. Heel bar activates calf muscles, stabilises the rearfoot and improves crotch guidance and coordination. Inner and outer longitudinal arch supports give the foot the necessary stability when stepping on. Cross arch support supports a natural straight and firm stand of the foot. Weight: 0.66 pounds.