Leisure Arts Hats For The Family Forward & Reverse Knit ePattern- This roomy and slightly slouchy hat comfortably fits toddler and child sized heads with circumferences of 16" to 18". Knit with size 4 medium weight yarn and US size 6 & 8 knitting needles. Easy+ skill level. Includes instructions and diagrams for learning how to: knit in the round with circular or double pointed needles, picking up stitches, weaving seams, and more. PDF download.