These are wool socks made for the Canadian army designed to their specifications. They are made from quality heavy grade wool (no "itch"), they have a thick cushion sole and a long 13" leg perfect for use with boots. Wool is great at wicking away moisture so you won't get blisters and it can help regulate body temperature. They are sure to keep your feet warm in the harshest of conditions! Content: 60% Superwash Wool & 40% Nylon OTC length - Comes up over the calf 13" Leg Knee high boot socks Heavy Wool & Thick cushion for maximum comfort and warmth Designed for the Canadian troops! Mid Weight: 110-150 grams(XS-XL) Made in Canada X-Small - (Kids 8-13 Shoe)