119.5 grams to start.

Cast on 72.
20 rounds ribbing.
44 rounds leg.
Knit across instep and work heel flap on second set of 36 stitches on needle 2.
36 rows heel flap
Pick up 19 stitches on each side, and 1 in between the flap and the instep.
26 rounds gusset, starting with decrease round and ending with plain round.
50 rounds foot.
Toe - Begin with decrease round, work 18 rounds (ending with knit round). 36 stitches. Work only decreases for rounds 19-23.
Graft remaining 16 stitches.