This is a quick-to-knit tee in just 2 pieces. Knits up on US 9 needles, the sleeves are increased to the front and back. Shoulders are short-rowed for a clean, flat look. Pattern stitch involves two rows of 2x2 rib, and 2 knit rows. Or knit up in stockinet stitch. The brightly colored sweater was done in seed stitch with garter trim, in Noro Taiyo, alternating 2 different balls of the same color for 2 rows each. Makes a nice woven effect. I added garter trim at the ends of the sleeves.

Directions are written in 3 sizes: 38 (41, 43.5) inches finished chest measurement: length 20 (20, 21) inches
Yardage: 615 (645, 680)

The neck is a comfortable scoop. If you need a slightly smaller or larger size, you could easily add or subtract 4 stitches from the cast on without changing the neckline. You would need to recalculate the shoulder shaping.