This top is knit from the top down, using knit and purl stitches with some shaping. The main body is knit in stockingette stitch with moss stitch peaks at the bottom. The pattern shows the cropped version but you can knit this as long as you like

Size when finished
Small (UK6-10) 47cm
Medium (UK12-16) 57cm
Large (UK18-22) 67cm
X Large (UK24-28) 77cm