Immersion Research Men's Top/Union Suit Size Chart
| Garment size | Weight (lbs) | Height (feet) |
| Small | 125 - 145 | 5'3" - 5'7" |
| Medium | 140 - 165 | 5'5" - 5'10" |
| Large | 160 - 185 | 5'8" - 6'0" |
| Xlarge | 180 - 215 | 5'10" - 6'3" |
| XXlarge | 210 - 235 | 6 - 6'4" |
| Garment size | Weight (lbs) | Height (feet) |
| Small | 125 - 145 | 5'3" - 5'7" |
| Medium | 140 - 165 | 5'5" - 5'10" |
| Large | 160 - 185 | 5'8" - 6'0" |
| Xlarge | 180 - 215 | 5'10" - 6'3" |
| XXlarge | 210 - 235 | 6 - 6'4" |