The vertical lines of the shawl are produced with right cable on RS and slip stitch on WS, and the broad horizontal stripes are made alternating stockinette or reverse stockinette stitch. It can be finished with tassels of your desired length. The pattern is quite simple but can be fiddly if you remove and replace markers on every WS row.
If you would like to knit this shawl you can get the pattern from the designer. The matching wool is available in our shop.