The flaps are made of light rubber material. The straps are adjustable, so you can adjust them to your foot. Made of eco leather. The slippers have a comfortable, delicately profiled insert. They are also great as home flip-flops. Be sure to check out our entire collection of women's slippers! When choosing a size, please use the size chart. 36-23,5/37-24/38-24,5/39-25,5/40-26/41-26,5 cm.