| Size | CGA Vests Chest Size | Comp Vests (NCGA) Chest Size |
| XS | 28" - 32" | -- |
| S | 32" - 36" | 34" - 37" |
| M | 36" - 40" | 36" - 40" |
| L | 40" - 44" | 40" - 43" |
| XL | 44" - 48" | 43" - 46" |
| 2XL | 48" - 52" | -- |
| 3XL | 52" - 56" | -- |
| Size | CGA Vests Chest Size | Women's Dress Size | Comp Vests (NCGA) Chest Size | Women's Dress Size |
| XS | 28" - 32" | 2 - 4 | 29" - 32" | 0 - 2 |
| S | 32" - 36" | 6 - 8 | 32" - 35" | 4 - 6 |
| M | 36" - 40" | 10 - 12 | 35" - 38" | 8 - 10 |
| L | 40" - 44" | 14 - 16 | 38" - 41 | 10 - 12 |
| Size | Weight | Measurements |
| Infant | 0 - 30 lbs | |
| Child | 30 - 50 lbs | 20" - 25" |
| Youth | 50 - 90 lbs | 24" - 29" |
| Teen | 90+ lbs | 28" - 32" |