Size Guide Alan Paine Men's Jackets, Shirts and Outerwear
| Size | S | M | L | XL | 2XL | 3XL | 4XL | 5XL |
| Chest (inches) | 36-38 | 38-40 | 40-42 | 42-44 | 44-46 | 46-48 | 48-50 | 50-52 |
| Jacket Sleeve Length (cm) | 78 | 80 | 82 | 84 | 86 | 88 | 88 | 88 |
| Shirt Collar (inches) | 14.5-15 | 15.5 | 16-16.5 | 17-17.5 | 18 | 19 | 19.5 | 20 |