O’Neal Sierra II Helmet
O’Neal Sierra II Helmet, featuring polycarbonate/ABS construction, is designed for more aggressive adventure riding and varying terrain. The Sierra II Helmet includes an integrated face shield and a shorter peak visor for more diverse functionality.
Features:
- Shell isย constructed from ABS
- Moisture wicking, removable/washable air channeled comfort liner
- Vent holes for optimal ventilation
- Integrated face shield
- Height adjustable helmet shield
- Padded chin strap with double-dย safety lock
- Meets DOT and ECE 22.05 safety standards
- Designed for Street, Enduro, Side by Side and Adventure riding





















![AGV K3 / K4 EVO Face Shield Iridium Blue [Open Box]](https://www.motorcycle-us.com/wp-content/uploads/2024/11/agvk3_k4_evo_face_shield_iridium_blue_open_box_iridium_blue-247x219.webp)




Reviews
There are no reviews yet.