Product detailed description materials: upper part microfiber textile fleece lining sole natural rubber laces, zip In the table we always indicate the inside size of the shoe. We prepare the table based on our own measurements with the Plus 12 (inner length) and Clevermess (inner width) tools. The optimal oversize for winter boots is 1-1.3 cm. Recommendations for foot measurement and choosing the right size: How to choose shoes Made in the Netherlands, the materials meet European standards and are safe. Up to size 31, they have an overhang of rubber in the toe box - a trench (2nd photo), larger sizes do not (photo 1) shoes Koel4kids Mica Vegan Tex Black 04T001.50E