| Garment Size | Chest - inches (centimetres) |
| S - Small | 40" (102cm) |
| M - Medium | 42" (107cm) |
| L - Large | 44" (112cm) |
| XL - Extra Large | 46" (117cm) |
| 2XL - Double Extra Large | 48" (122cm) |
| 3XL - Triple Extra Large | 50" (127cm) |
| 4XL - Quadruple Extra Large | 52" (132cm) |
