Avoriaz Boots & wellies Brown available in size 6K Girls' Naturino Avoriaz ski boot, in leather and synthetics, with round toe, gum sole and fastened with two Velcro straps on the calf. The thick non-slip sole, hi-top upper and chunky straps around the calf will transform whoever wears them into a Space Rider! These boots are both fashionable and practical, robust and comfy, and particularly suited to bad weather - ideal for all aspiring lunar adventurers! With removable insole. The width of the shoe in size 13K is 3.6 inches.