Boys rashtops size guide
| Age | Unit | 1-2 yrs | 3-4 yrs | 5-6 yrs | 7-8 yrs | 9-10 yrs | 11-12 yrs |
| Chest circumference | Inches | 23.5 | 25 | 26 | 30 | 31.5 | 34 |
| CM | 60 | 63.5 | 66 | 76 | 80 | 86.5 | |
| Body length | Inches | 15.75 | 17 | 18 | 20.75 | 22.5 | 24.5 |
| CM | 40 | 43 | 46 | 53 | 57 | 62 | |
| Arm length (short sleeve) | Inches | 4.5 | 4.75 | 5.25 | 6.5 | 6.75 | 7.25 |
| CM | 11.5 | 12 | 13.5 | 16.5 | 17 | 18.5 | |
| Arm length (long sleeve) | Inches | 12.75 | 14 | 15.25 | 17 | 18.5 | 19.5 |
| CM | 31 | 35.5 | 39 | 43 | 47 | 49.5 |