| SIZE | HAT SIZE | MEASUREMENT (inches) |
| 4XS | 6 3/8 | 20 |
| 3XS | 6 1/2 - 6 5/8 | 20 - 21 |
| 2XS | 6 3/4 - 6 7/8 | 21 - 22 |
| XS | 7 | 22 |
| S | 7 1/8 | 22 |
| M | 7 1/4 - 7 3/8 | 23 - 23 |
| L | 7 1/2 | 24 |
| XL | 7 5/8 - 7 3/4 | 24 - 24 |
| 2XL | 7 7/8 - 8 | 25 - 25 |
| 3XL | 8 1/8 - 8 1/4 | 26 - 26 |
| 4XL | 8 3/8 - 8 1/2 | 26 - 27 |
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The Bell GP3 Sport helmet combines traditional F1 styling, a versatile air intake system, a double screen anti-fog shield, and a lightweight carbon composite shell with leading-edge aerodynamic performance. A great option for open-wheel, formula racers, and karters who demand professional features, performance, and comfort, the GP3 Sport provides maximum ventilation and clear vision in even the toughest track conditions. Front duckbill (chin spoiler) for improved aerodynamic performance. M6 terminals for FHR anchor attachment and homologated for use with approved head and neck devices. (Hans anchors not included). Snell SA2020 homologated.
