I used grey alpaca yarn from Acapella Alpaca Farm in Hollis, NH. The top-down knitting pattern with raglan sleeve shoulders is entitled "Knitted Spring Ribbed Cardigan" by Hannah Fettig (Knitbot). You could easily modify the pattern to shorten the sleeves and/or make it a bolero style sweater.
Closeup of the knit 6, purl 3 knit pattern.
View from the back shows the stockinette stitch with the 6x3 pattern on the outside edges of the back.