You will need: A pair of 4.5mm (UK7 - US7) knitting needles, a pair of 5mm (UK6 - US8) knitting needles, stitch holders, stitch markers. Also for V neck sweater: 4.5mm (UK7 - US7) circular knitting needle.
ROUND NECK SWEATER
Using 5mm needles, cast on 110[122:134:146:158] sts.
Row 1 (rs): K2, *k2tog, yfwd, k2; rep from * to end.
Row 14: P2, *k2, p2; rep from * to end.
Rep rows 13 and 14, 3 times more.
These 20 rows form the lace rib patt.
Cont in patt until back measures approx 36[36:39:39:42]cm, 14¼[14¼:15½:15½:16½]in, ending with either row 10 or row 20 of patt (ws row).