Hi,I'm the madmonkeyknitter from www.madmonkeyknits.com. and I design and sell knitting patterns. This is my Chunky Roll Brim Slouch hat knitting pattern. It can be knitted in any chunky yarn suitable for 6 mm needles. Its extremely quick and easy to make and yet really slouchy. The knitting pattern provides full instructions for 4 sizes Xs, S M & L so can be made for anyone from babies to adults with a head circumference between 16 - 24 inches.