Thick & Warm - Our baby warm socks are main made of cotton, with acrylic and spandex, soft terry cover the entire sock inner, soft and warm to wear, suitable for cold weather. Size Information - We offer 2 sizes: 6-12 month, 1-2 Y Each package includes 4 pairs baby socks with different color Non Slip Sole - Anti-skid grippers ensures the baby safety, great for babies who learn to walk or crawl.Also perfect for little kids who like running, scooting and jumping in the house.