The Phenom Top Air Piece bolts on to convert your Impact Phenom helmet so that it can be used with forced air systems.
| Helmet Size | Part |
| Small – M/L | 17500012 |
| Large – 2XL | 17500013 |
The Phenom Top Air Piece bolts on to convert your Impact Phenom helmet so that it can be used with forced air systems.
| Helmet Size | Part |
| Small – M/L | 17500012 |
| Large – 2XL | 17500013 |