Item model number : DCF013, DCF053, DCF073, DCF123 US Small : Shoulder 17.5 / Chest 40 / Sleeve 8.5 / Length 25 US Medium : Shoulder 18.2 / Chest 42 / Sleeve 9 / Length 25.5 US Large : Shoulder 19 / Chest 44 / Sleeve 9.5 / Length 26.5 US X-Large : Shoulder 19.5 / Chest 46 / Sleeve 10 / Length 27.5 US XX-Large : Shoulder 20 / Chest 48 / Sleeve 11 / Length 28 US 3X-Large : Shoulder 21 / Chest 50 / Sleeve 11.5 / Length 29