Product detailed description materials: upper part 70% recycled polyester + 30% cotton textile lining and insole rubber sole Velcro strap 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 bačkor is 0.9-1.2 cm. Recommendations for foot measurement and choosing the right size: How to choose shoes Made in the Czech Republic, the materials meet European standards and are harmless. flip flops Pegres BF01U black