HJC DS-X1 Synergy Dual Sport Helmet.
Features
- Advanced Polycarbonate Compact Shell
- Superior Fit and Comfort Using Advanced CAD Technology
- SuperCool® Moisture-Wicking Interior
- Large Eye Port for Maximum Visibility
- Pinlock®-Prepared HJ-27 Shield
- Aerodynamic Visor and Shell
- Converts From Shield/Visor to Visor-Only Helmet
- Chin Curtain Included
- “ACS” Advanced Channeling VentilationSystem
- Glasses Grooves for Riders with Eyeglasses
- Double D-Ring Chin Strap
- Standards: DOT-218
Sizing
Wrap a tape measure horizontally around your forehead. Select the helmet that is the closest fit to that size. A helmet should fit snug on your head. If it moves while wearing, it is too large. If it is painful to wear, it is too small.
| Size Chart | |||
| Size | CM: | Hat Size | Inches |
| XS | 54-55 | 6 3/4 - 6 7/8 | 21 1/4 - 21 5/8 |
| S | 55-56 | 6 7/8 - 7 | 21 5/8 - 22 |
| M | 57-58 | 7 1/8 - 7 1/4 | 22 1/2 - 22 7/8 |
| L | 58-59 | 7 1/4 - 7 3/8 | 22 7/8 - 23 1/4 |
| XL | 60-61 | 7 1/2 - 7 5/8 | 23 5/8 - 24 |
| 2XL | 62-63 | 7 3/4 - 7 7/8 | 24 3/8 - 24 3/4 |
