This is the best project for sitting-in-the-hospital knitting. Beyond increasing for the gusset and the numbers for the heel turn and flap, it’s virtually an autopilot exercise.

CO 10, begin increases every round until there are 22 sts. each needle, then increase every other round until 36 sts. each needle. Knit to 6 3/4” long, then start gusset. 61 sts. in gusset.

Knit two more rounds after completing the heel flap with the US 1 (2.25 mm) needles, then switched to US 1.5 (2.50 mm) for the leg,