Size Guide:
| NATO Size | UK Size | Fit | Height | Chest (Inches) |
| 150/80 | Extra Small | XX-Short | Under 5' | 31.5" |
| 160/80 | Extra Small | X-Short | Up To 5' 4" | 31.5" |
| 160/85 | Extra Small | X-Short | Up To 5' 4" | 33.5" |
| 160/88 | Small | X-Short | Up To 5' 4" | 34.6" |
| 160/90 | Small | X-Short | Up To 5' 4" | 35.4" |
| 160/95 | Medium | X-Short | Up To 5' 4" | 37.4" |
| 160/96 | Medium | X-Short | Up To 5' 4" | 37.8" |
| 160/109 | X-Large | X-Short | Up To 5' 4" | 42.9" |
| 170/85 | Extra Small | Short | 5' 5" - 5' 8" | 33.5" |
| 170/88 | Small | Short | 5' 5" - 5' 8" | 34.6" |
| 170/90 | Small | Short | 5' 5" - 5' 8" | 35.4" |
| 170/95 | Medium | Short | 5' 5" - 5' 8" | 37.4" |
| 170/96 | Medium | Short | 5' 5" - 5' 8" | 37.8" |
| 170/100 | Large | Short | 5' 5" - 5' 8" | 39.4" |
| 170/104 | Large | Short | 5' 5" - 5' 8" | 41" |
| 170/105 | Large | Short | 5' 5" - 5' 8" | 41.3" |
| 170/110 | X-Large | Short | 5' 5" - 5' 8" | 43.3" |
| 170/112 | X-Large | Short | 5' 5" - 5' 8" | 44.1" |
| 180/95 | Medium | Regular | 5' 9" - 6' | 37.4" |
| 180/96 | Medium | Regular | 5' 9" - 6' | 37.8" |
| 180/100 | Large | Regular | 5' 9" - 6' | 39.4" |
| 180/104 | Large | Regular | 5' 9" - 6' | 41" |
| 180/105 | Large | Regular | 5' 9" - 6' | 41.3" |
| 180/110 | X-Large | Regular | 5' 9" - 6' | 43.3" |
| 180/112 | X-Large | Regular | 5' 9" - 6' | 44.1" |
| 180/115 | XX-Large | Regular | 5' 9" - 6' | 45.3" |
| 180/120 | XX-Large | Regular | 5' 9" - 6' | 47.2" |
| 190/95 | Medium | Tall | 6' 1" - 6' 4" | 37.4" |
| 190/96 | Medium | Tall | 6' 1" - 6' 4" | 37.8" |
| 190/100 | Large | Tall | 6' 1" - 6' 4" | 39.4" |
| 190/104 | Large | Tall | 6' 1" - 6' 4" | 41" |
| 190/105 | Large | Tall | 6' 1" - 6' 4" | 41.3" |
| 190/112 | X-Large | Tall | 6' 1" - 6' 4" | 44.1" |
| 190/120 | XX-Large | Tall | 6' 1" - 6' 4" | 47.2" |
| 200/110 | X-Large | X-Tall | 6' 5"+ | 43.3" |
| 200/128 | XXX-Large | X-Tall | 6' 5"+ | 50.4" |