This is a simple raglan sweater knit in the round from the top down in sport weight yarn, which has included a few options for finishing the neckline and other edges. The three chest sizes are 40.5”, 44” and 48.5” at the underarm and call for 1625, 1950 and 2275. As written the sweater is 25.5”, 27” and 28.5” from shoulder to bottom; you may need more yardage if you make it longer or add a turtleneck. Since it is top down it can be tried on and adjustments can be as you knit it.