School Shirt Size Guide
| Collar Size in Inches | Collar Size in Cm | Chest Size in Cm | Age Guide |
| 11" | 28cm | 56cm | 3-4yrs |
| 11.5" | 29cm | 61cm | 5-6yrs |
| 12" | 30cm | 66cm | 7-8yrs |
| 12.5" | 32cm | 71cm | 9-10yrs |
| 13" | 33cm | 76cm | 11yrs |
| 13.5" | 34cm | 78.5cm | 12yrs |
| 14" | 36cm | 81cm | 13yrs |
| 14.5" | 37cm | 84cm | 14yrs |
| 15" | 38cm | 86.5cm | 15yrs |
| 15.5" | 39cm | 89cm | |
| 16" | 41cm | 91cm | |
| 16.5" | 42cm | 94cm | |
| 17" | 43cm | 96cm | |
| 17.5" | 44cm | 99cm | |
| 18" | 46cm | 102cm | |
| 18.5" | 47cm | 104cm | |
| 19" | 48cm | 107cm |
