My original thought was horizontal stripes, but I like this vertical design better, and just played around with the proportions of the stripes and angles of the joins until I had something that pleased me. So, worked side to side in two rectangles for the body, with dropped shoulders and sleeves added later. Note sleeves here are 3/4 to suit my preference. If you want them full-length you may need more yarn, but I used between 80g and 90g of each colour, so you should be able to get a few inches more in the sleeves!
Only one size given, but once you have your gauge a simple calculation would make it longer, wider, or smaller, as there is no shaping except narrowing the sleeves.
Final measurements: Length 70cm / 27¾“, Width 64cm / 25½”, Sleeve seam 30cm / 12”.
Download pattern gives exact details of yarn, but any suitable 4-ply/ fingering / sock yarn could be used.