The following size chart is to be used as a guide only.
Measure from the centreline of your face at your mouth to at least 2.5 cm past the outside corner of your mouth.
The outer edge of the Training Mask should sit against your face at 2.5 to 3.8 cm outside the corner of your mouth.
| Size | Weight | Mouth Measure |
| Small | 45 – 66 kg | 10.2 cm |
| Medium | 68 – 112 kg | 11.4 cm |
| Large | 113 – 136 kg | 12.7 cm |