Gauge 23 stitches and 30 rows = 4 inches in Stockinette Stitch Needle size US 3 - 3.25 mm US 4 - 3.5 mm You will need an additional size US 4 (3.5 mm) needle for the 3-needle bind off on the shoulders. You will also need a size US 3 (3.25 mm) circular needle no longer than 16' (40 cm). You will also need 10 buttons for the side fastenings. Rowan used approx 3/4" (2 cm) buttons with two holes in each. Yardage 1562 - 2272 yards (1428 - 2078 m) Sizes available 32-34(36-38,40-42, 44-46, 48-50)" 81-86 (91-97, 102-107, 112-117, 122-127) cm Finished measurements: Bust circumference: 40 (44, 48.25, 51.75, 55.75)" 101.5(112, 122.5, 131.5, 141.5) cm Finished length: 28.75(29.5, 30.5, 31.25, 32)" 73(75, 77.5, 79.5, 81.5) cm Sleeve to armhole: 17.75(17.75, 18, 18, 18)" 45(45, 46, 46, 46) cm Yarn used: Rowan Baby Cashsoft Merino Shade 125 Cecliy - 11(13, 14, 15, 16) balls