White competition t-shirt, with three rubberised SBD logos on the chest and both arms. Made from lightweight, 100% cotton fabric.
Manufactured exclusively in Great Britain.
Male:
| Maat | Bodyweight (kg) | Chest Size (cm) |
| XSmall | <50 | <82.5 |
| Small | 50-65 | <82.5 - 90 |
| Medium | <65-80 | 90-97.5 |
| Large | 80-95 | 97.5-105 |
| XLarge | 95-110 | 105-115 |
| 2XLarge | 110-130 | 115-125 |
| 3XLarge | 130-150 | 125-135 |
| 4XLarge | 150-170 | 125-145 |
| 5XLarge | 170+ | 145+ |
Ladies:
| Maat | Bodyweight (kg) | Chest Size (cm) |
| XSmall | <50 | <82.5 |
| Small | 50-65 | <82.5 - 90 |
| Medium | <65-80 | 90-97.5 |
| Large | 80-95 | 97.5-105 |
If in doubt please go with your standard t-shirt size.