Also available on Ravelry: https://www.ravelry.com/patterns/library/phase-cardigan 
 
The Phase Cardigan has a simple construction which is designed to show of the texture of thick and thin yarn. It is worked top down in the round with the neck and side ribbing incorporated, so there is only a minimal number of stitches that need to be picked up at the start, there’s also no seaming! The top down design also allows you to easily adjust the length of the sleeves and body to suit your style.