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Using 4.5mm needles and yarn A, cast on 87 (97:107:117:127) sts.
RIB PATTERN
Row 1 (RS): K2, *P1, K1; rep from * to last st, K1.
Row 2 (WS): K1, *P1, K1; rep from * to end.
Rep last 2 rows until rib measures 6cm, ending after a WS row.
Inc row (RS): K7 (7:8:7:4), *M1, K3 (4:4:5:5), M1, K4 (4:4:4:5); rep from * to last 3 (2:3:2:3) sts, K3 (2:3:2:3).
109 (119:131:141:151) sts.
Set-up row: K3 (2:2:4:3), (P1, K2) 6 (7:9:9:11) times, *P7, (K2, P1) 7 (8:8:9:9) times, K2; work from * once more, P7, (K2, P1) 6 (7:9:9: 11) times, K3 (2:2:4:3).
SET PATTERN
Change to 5.5mm needles.
Row 1 (RS): P3 (2:2:4:3), (K1B, P2) 6 (7:9:9: 11) times, *CbC7, (P2, K1B) 7 (8:8:9:9) times, P2; rep from * once more, CbC7, (P2, K1B) 6 (7:9:9:11) times, P3 (2:2:4:3).
Row 2: K3 (2:2:4:3), (P1, K2) 6
