Product detailed description materials: upper part rubber sheep wool lining and insole, aluminum foil in the insole for higher thermal insulation rubber sole 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 rubber bands is 1.1-1.3 cm. Recommendations for foot measurement and choosing the right size: How to choose shoes Made in China, the materials meet European standards and are safe. insulated boots Bundgaard Charly High Dark Rose