| Product Name | HJC C91N NEPOS MC21 Helmet | 
| Colour | C91N-NEPOS-MC21 | 
| Material | Advanced Polycarbonate Composite Shell | 
| Design | Aerodynamic shell with a striking MC21 graphic design | 
| Configuration | Full-face helmet with an advanced ventilation system | 
| Ventilation | ACS (Advanced Channeling Ventilation) system for effective airflow | 
| Performance | Provides superior protection and comfort with a lightweight build | 
| Sound | Engineered to minimize wind and road noise | 
| Compatibility | Suitable for a broad range of motorcycle types | 
| Aesthetic | Bold NEPOS MC21 graphic for a distinctive look | 
| Weight | Approximately 1450 grams | 
| Legal Compliance | DOT and ECE approved | 
| Installation | Adjustable fit with removable and washable interior padding | 
| Maintenance | Interior liner is removable and washable for easy upkeep | 
| Loaded Features | Advanced ventilation, removable liner, DOT and ECE certified |