Polka Dot Pull by Marina Orry
This easy-fit pullover in ten sizes (XS to L and 1X to 6X) is a simple knit that combines the simplicity of stockinette stitch, the trend of colorblock knitting, and the classic of fair isle. Front and back are worked flat then seamed, while sleeves are worked in the round then sewn to body. Shoulders are shaped with short rows for a better fit, and closed with a three-needle bind-off. Neckline is finished with simple ribbing.
Substituting yarn and/or needles may result in an overall variation in size, drape, and yardage requirement.

Get the kit here: http://knitspot.com/knitting_pattern/polka-dot-pull-kit-p-1383.html

Finished Size: 35.5(37.5, 40, 42.5, 44.5, 47, 49, 51.5, 53.5, 56) inches / 90(95, 101.5, 108, 113, 119.5, 124.5, 131, 136, 142) cm in circumference around chest to fit with 2 to 4 inches / 5 to 10 cm of ease

Yarn Requirements:
Color A (light): 375(400, 425, 475, 500, 525, 575, 600, 625, 700) yards / 350(375, 400, 450, 475, 500, 525, 550, 575, 650) m
Color B (dark): 700(750, 800, 850, 900, 975, 1050, 1100, 1200, 1250) yards / 650(700, 750, 775, 825, 900, 950, 1000, 1100, 1150) m