A Useful Diversion by Elizabeth Felgate is engaging to knit and totally reversible. Pattern containsCharts and written instructions for main pattern and crown decreases. Links to tutorials for suggested cast on. Sizes:Choose a size approx. 10-15cm (4-6") less than your actual head size for a snug fit (sample is shown with 11cm negative ease). Hat lengths are with brim unfolded. Be sure to measure from the top of your crown to the base of your ear to check the required length and work additional ribbing if required (more info on this in pattern). Finished sizes:18 months-4 years: 31.5cm/12 ¼ in circumference and 22cm/8 ½ in longAdult S: 38.5cm/15 ¼ in circumference and 27.5cm/11 in longAdult M: 41cm/16 in circumference and 30cm/11 3/4 in longAdult L: 43.5cm/17 in and 31cm/12 ¼ in long Gauge:24 stitches and 27 rows over 10cm/4 in over main pattern. Skills required:Knitting in the roundDecreasing Needles:4mm (US 6) circular needle or correct needle size to achieve gauge . You can use DPNS if you prefer. Pattern is needle neutral, but you may substitute your preferred method for small circumference knitting when decreasing the crown. NotionsTapestry needle to weave in ends.Stitch marker Yarn and yardageCumbria by The Fibre Co. Worsted / 10 ply 60% Merino, 30% Masham, 10% Mohair in colourway Buttermere. Or any substitute light worsted yarn with which you can achieve gauge. Some testers found they could achieve gauge with DK yarn with a strand of lace weight added - if doing this be sure to check your row gauge as you may need to work a little extra ribbing or main rise of the hat if your row gauge is short.: 18 months- 4 years: 77m/85ydsAdult S: 121m/133ydsAdult M: 141m/154ydsAdult L: 153m/167yds Always allow extra yarn This pattern is a PDF that will be fulfilled using the Ravelry LYS program after purchase to ensure payment is made directly to the designer. The PDF will be e-mailed to you upon fulfillment. Please note, this process is done manually during business hours (11am-5pm Pacific Time). If you prefer to purchase the pattern directly from the designer, you can do so here.