Gauge (with US 5/3.75mm):
22 stitches and 29 rows (single colour)
22 stitches and 23 rows (colourwork)

I used a US 6 for the colorwork on the sleeves, otherwise I used a US 5 throughout. US 3 for the ribbing.

Approximate Yardage: MC = 883yd; CC = 155yds

Love the argyle so much!

Stranded colorwork flat is a little bit fiddly, but the WS row is always the same as the RS row in the chart so it is super easy to just purl exactly what you see as you come to the stitches. Definitely not as hard as one might think given this colorwork chart.

My only modification was to add a quick decrease round right before the ribbing on the cuff in order to have a narrower fit around the wrist. I decreased by 10 stitches immediately before beginning the ribbing on the cuffs.