The boot is designed with elastic on both sides that shapes 100% to the leg and is sewn in the softest leather. The insoles are very soft and feature our special Copenhagenshoes foam. Roomy in the foot - fits snugly on the leg If you are between 2 sizes, we recommend going down a size. --- Material: leather Sole: rubber Upper: textile Shaft height measured at the back in size 37 is 37 cm Shaft circumference measured at the top edge in size 37 is 37 cm