The Story Time Collection reflects the storytelling spirit with fashionable knee socks that tell a story through popular children’s character designs. Socks come with coordinating book for a fun, early reading tool. This item features non-skid soles, soft book opens accordion- style to reveal fun black and white illustrations. These variety of themes, are perfect for year-round gifts as they come with colorful character designs outside and black-and-white illustrations with playful stories inside. DEMDACO Bear and Mouse Book and Knee Sock Gift Set by Story Time Collection. Material - Socks: Cotton, Nylon, Polyester, Spandex; Book: Polyester, Book Measures: 5 Inches x 5 Inches.