Royal blue, drop shoulder, woollen jersey with Saint Kentigern logo embroidered on left breast.
| Middle School Jersey | ||||
| SIZE | BODY WIDTH (cm) | BODY LENGTH (cm) | SLEEVE WIDTH (cm) | SLEEVE LENGTH (cm) |
| 97 | 52 | 69 | 24 | 51 |
| 92 | 50 | 66 | 23 | 51 |
| 87 | 47 | 63 | 22 | 50 |
| 82 | 44 | 63 | 21 | 45 |
| 77 | 43 | 59 | 20.5 | 41 |
| 72 | 40 | 55 | 19 | 39 |
| 67 | 39 | 52 | 18 | 37 |
| 62 | 36 | 49 | 18 | 36 |