This is my 4 Ply Fishermans Rib Unisex Beanie Hat knitting pattern. This hat has been designed in 4ply yarn to really define the rib pattern yet remain super light to wear. Its worked flat on 3 mm needles with any 4 ply yarn of your choice. The pattern provides full written instructions for 4 sizes XS (baby), S (child), M (teen/small adult) & L (adult).