Sizes

(XS, XS, S) (M, L, XL) (2XL, 3XL, 4XL)(5XL, 6XL, 7XL)

Remember these are just names so look at the measurements for the right size!

Measurements

Chest:
(85, 90, 95) (100, 105, 110) (115, 125, 135) (145, 155, 165) cm //
(33.5, 35.4, 37.4) (39.4, 41.3, 43.3) (45.3, 49.2, 53.1) (57.1, 61.0, 65.0) Inches

The Pattern includes instructions for short and long arms

Yarn
Any sport/fingering weight !

For example Silky Merino by Malabrigo or Isager Merilin

Yarnalternatives see in Pattern

Needles
Double-pointed needles: US 4 and US 7 (3 mm and 3.5 mm)
(unless the magic loop technique is used)
Circular needles, 16 in (40 cm): US 4 and US 7 (3 mm and 3.5 mm)
Circular needles, 32 in (80 cm): US 4 and US 7 (3 mm and 3.5 mm)

Gauge
24 sts = 4 in (10 cm) on US 10 needle in stockinette
stitch