Just1Helmet J18 Rockstar

Technical Features:
- Fiberglass shell
- 2 external shell sizes
- 2 EPS sizes
- MIPS system
- "Just1 emergency remove" system
- Adjustable and removable peak
- Peak extension included
- High grade metal vent screens
- Removable an washable inner lining
- Multiple air vents system

- Double D retention system
- ECE certification
- Sizes XS/S/M/L/XL/XXL From 54 to 63
- ECE small shell weight 1250 g
- ECE big shell weight 1300 g