Pictured is a sandal with a sole in pod form. In fact, the sole is straight but in the central area, so that a continuous rolling of the foot while walking is not possible. Producers statement "round shape sole promotes the natural rolling movement of the foot" is simply wrong. The foot on firmly so that the foot muscles are not claimed by the rocker Ballance a sole in gondola form. The shoe is not suitable for people with weak foot dorsiflexion. Negative is that the heel holder is not adjustable. Thus, the size is too small, so that the toes forward survive while wearing. At the foot of the embossed in grooved and dimpled structure cold plastic footbed is insufficient orthopedic metatarsal support very uncomfortable for me. Despite the very reasonable price (6 EUR plus shipping) a bad buy!