- Technologically advanced aerospace composite shell construction.
- Inner dual-density shock pad system helps absorb smaller impacts, withstands multiple hits and add greater durability for the single impact absorbing EPS liner.
- 14 intake ports over forehead, brow and chin areas guide airflow past rider’s head for maximum ventilation.
- 6 high-flow exhaust vents release hot air ensuring an even flow of cool air throughout the helmet’s interior.
- Removable and washable comfort liner with Coolmax® and Dri-Lex® materials.
- Corrosion-resistant titanium D-ring chin strap fastener for superior strength.
- Fully adjustable visor for custom height placement.
- Machined titanium visor screws for reduced weight.
- D3 helmet bag and 2 D3 color-matching visors included.
| Helmet Size | U.S. Hat Size | Inches | CM |
| Youth Small | Â | Â | Â |
| Youth Medium | Â | Â | Â |
| Youth Large | Â | Â | Â |
| Adult X-Small | Â 6-5/8 to 6-3/4 | Â 20-7/8 to 20-1/4 | Â 53 to 54 |
| Adult Small | Â 6-3/4 to 7 | Â 21-1/4 to 22 | Â 54 to 56 |
| Adult Medium | Â 7 to 7-1/4 | Â 22 to 22-3/4 | Â 56 to 58 |
| Adult Large | Â 7-1/4 to 7-1/2 | Â 22-3/4 to 23-5/8 | Â 58 to 60 |
| Adult X-Large | Â 7-1/2 to 7-3/4 | Â 23-5/8 to 24-1/2 | Â 60 to 62 |
| Adult XX-Large | Â 7-3/4 to 7-7/8 | Â 24-1/2 to 24-7/8 | Â 62 to 63 |









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