Design by Bev Galeskas. Quick to crochet in bulky yarn and a size N hook, these slippers have double soles for wearing comfort. Woman’s small, medium,large, and men's medium, and large. Exact finished size can be controlled during felting. Slippers are made with a single strand of bulky weight wool. Crochet can be a bit harder to felt than knitting so it is important to choose a wool that felts easily.