Laurel Burch Cat Socks. Laurel Burch Socks "Rainbow Cats" PURPLE - These socks by Laurel Burch have wonderfully colorful rainbow cats with gold threads weaving lovely designs and creating a border at the top. Made of 70% cotton, 20% nylon and 10% spandex. Adult - fits size 9-11. Available in purple or black. This listing is for PURPLE.