Product detailed description materials: the upper part is made of nubuck leather the lining is a membrane, the insole is made of fabric rubber sole Velcro straps The optimal excess for sneakers is 1-1.2 cm. Recommendation for measuring the foot and choosing a suitable size: Made in the Czech Republic, the materials meet European standards and are harmless. Beda Rebecca high top barefoot shoes with membrane (BF 0001/W/M/)