Sizesshoe sizes: SToddler 4 7, MToddler 7 10, LKids 10 2, XLKids 1 5. The Wigwam Kid's Comfort Hiker utilizes a fine grade Merino wool, with all its softness and comfort knit into this reasonably priced hiker. The Wigwam Kid's Comfort Hiker s cushy, comfortable, and durable construction keep this value a favorite of young outdoor enthusiasts. Expertly constructed fit All over Merino softness and cushion Stay in place leg and top construction Seamless toe closure eliminates irritation. 70% Merino wool, 25% Stretch Nylon, 5% Elastic rubberThanks for supporting the All American Brand Wigwam.