These booties are worked flat on 2 normal knitting needles size 3 mm in any dk (8ply) yarn of your choice. These fantastic booties are really quick and easy to make and look great on any newborn baby. The knitting pattern provides full instructions for 4 sizes XS, (premature – tiny baby), S (small newborn) M,(average newborn) and L (big newborn) and there are lots of step by step photos to help you throughout.