MATERIAL – The Mr. Krabbs socks are made of polyester and spandex material. SIZE – The Squidward socks fit shoe sizes 7-13. OFFICIALLY LICENSED – The Spongebob Squarepants Socks are officially licensed and 100% authentic. CHARACTER COLLECTION – The Mr. Krabbs Socks are a part of the collectible Characters Collection. 200 NEEDLE CONSTRUCTION – The Mr. Krabbs Socks feature a 200 needle construction for a clear, detailed image.