The following are guidelines only.
| S (+ vat) | 38" (96.5cm) chest measurement |
| M (+vat) | 41" (104cm) chest measurement |
| L (+vat) | 44" (112cm) chest measurement |
| XL (+vat) | 47" (119.5cm)chest measurement |
| XXL(+vat) | 50" (127cm) chest measurement |
| XXXL (+ vat) | 53" (134.5cm) chest measurement |