Cast on and work first rib row using size 4.00mm needles then change to 3.70mm for balance otherwise they will be too large.

Cast on with MC K2p2 rib 15 rows.
K1 row.
Change to CC and Pattern 10 rows.
Change to MC and knit to heels – total 63 to heels from cast on.

26 rows heel flap then heel turn
Picked up16 one side and 17 the other then one at each side of front. Decrease the two front on the first round, together with the 17th stitch – on second edge at bottom. Then start decreasing for the gusset.

Marker on row 23 from gusset pickup. Another 40 rounds 63 pattern rows in total then 1 round knit.
Star toe – alt decrease until 8 stitches on each needle (32) Then each row until 2 on each.