671 Training Short Size Guide
| Available Colours | Black / Navy / White |
| International Size | SY | MY | LY | XLY | S | M | L | XL | 2XL | 3XL |
| Years | 8/9 | 10/11 | 12/13 | 14 | ||||||
| Waist Inches (to fit) | 22/24 | 24/26 | 26/28 | 28/30 | 30/32 | 32/34 | 36/38 | 40 | 42 | 44 |
| Waist cm (to fit) | 56/61 | 61/66 | 66/71 | 71/76 | 76/81 | 81/86 | 91/97 | 102 | 107 | 112 |