STRIPY T-SHIRT BACK
Cast on 87 (96: 108: 120: 132) sts using 4mm needles and Yarn A.
Row 1 (RS) K2, *P2, K1; rep from * to last st, K1. Row 2 (WS) K1, *P1, K2; rep from * to last 2 sts, P1, K1.
These 2 rows set rib.
Cont in rib until work meas 6cm, ending with WS facing for next row.
Next row Purl to end, inc 1 (0: 0: 0: 0) st at end of last row. [88 (96: 108: 120: 132) sts]
Change to 4.5mm needles.
Beg with a knit row, working in st st and stripe pattern of 2 rows Yarn B, 4 rows Yarn A cont until work meas 30 (31: 32: 33: 34)cm, ending with RS facing for next row.**
Work 12 rows more in stripe st st.
SHAPE SLEEVES
Next row K2, M1R, knit to last 2 sts, M1L, K2. [90 (98: 110: 122: 134) sts]
Next row Purl.
Rep these 2 rows twice more.
[94 (102: 114: 126: 138) sts]
Cast on 7 sts at beg of next 6 rows. [136 (144: 156: 168: 180) sts] Place marker at each end of last row.
Cont in stripe st st as set until work meas 53 (55: 57: 59: 61)cm, ending with RS facing for next row.
SHAPE SLEEVE TOP AND SHOULDERS
Next row Cast off 11 (12: 13: 15: 16) sts, knit until there are 33 (36: 41: 44: 49) sts on RH needle, turn and leave rem sts on a holder.
Work 1 row.
Cast off 11 (12: 13: 15: 16) sts at beg of next and foll RS rows. [11 (12: 15: 14: 17) sts]
Work 1 row.
Cast off rem 11 (12: 15: 14: 17) sts.
With RS facing, rejoin yarn to rem sts,
Cast off 48 (48: 48: 50: 50) sts, knit to end.
Complete to match the first side, reversing all shapings. Place a marker at centre of cast-off sts at back neck.