Added rest row between rows 18 and 19 on chart
Worked entire chart twice, then first 31 sts of row 1
Turned, switched down to 2mm needles and worked ribbed heel flap in pattern across 34 sts, leaving 38 sts for instep
Continue gusset decreases to 32 sts on sole
Worked entire chart twice on foot, then 12 rows rib in pattern, Decreasing to 32 sets across instep in final ribbed row, before starting toe decreases