Crochet these slippers with the use of our vintage 1960s pattern. Originally crocheted with Mary Maxim Mellowspun which offered 420 yds per skein at that time. Please note, yardage has changed. Slipper sizes adult. Required crochet hook size U.S. F-5 (3.75 mm). This is a downloadable (non paper) pattern. For questions about yarn requirements, please contact us. After your purchase, you may download the pattern from your account.