From the Knit Rowan website:
Knit this striped mans sweater, available as a members only download. Designed by Martin Storey and using Felted Tweed Aran it features a button detail raglan and all over texture.

To fit chest:
91, 97, 102, 107, 112, 117, 122, 127 cm
36, 38, 40, 42, 44, 46, 48, 50 in

Rowan Felted Tweed Aran
95yrds/87m (1.75oz/50g)
•A - Wash 746: 6, 7, 8, 8, 9, 9, 9, 10 skeins
•B - Stoney 742: 6, 6, 6, 6, 6, 7, 7, 7 skeins
• C - Pebble 720: 6, 6, 6, 6, 6, 7, 7, 7 skeins

1 pair 4mm (no 8) (US 6) needles
1 pair 4.5mm (no 7) (US 7) needles

Gauge: 21 sts and 29 rows to 10 cm measured over patt using 4.5mm (US7) needles.

QTY (6) BN1562 buttons from Bedecked