The Uniqlo Women Heattech Socks 3 Pairs in one size are perfect for casual occasions during the winter season. These mid-calf crew socks are made of a blend of polyester, nylon, wool, and acrylic, ensuring warmth and comfort. The colorful design adds a touch of style to your outfit. Easy to care for with machine washable material, these socks are a practical and stylish addition to your wardrobe.