The HJC RPHA 31 Dereen MC6HSF is an open-face motorcycle helmet designed for protective performance, quiet operation, and comfortable road use. Its Premium Integrated Matrix (PIM) Evo shell combines carbon-aramid hybrid and natural fiber reinforcement materials to provide shock-resistant performance with comfort and lightness. Multi-density EPS helps support impact protection, while the aerodynamic shell design reduces air resistance and promotes stability at higher speeds.

Wind tunnel development contributes to a refined riding experience by helping reduce noise and turbulence. The helmet uses a full front-to-back ventilation system with two intake vents and four exhaust vents for airflow management. Its shield holder helps reduce noise and drag forces while holding the visor securely in place. The included Pinlock 120XLT DKS467-ready HJ-39 shield provides 99% UV protection and has an anti-scratch coating.

An integrated smoke-tinted sun visor features an anti-fog coating and bottom-positioned operation for convenient deployment. Multi-step adjustment allows the sun visor to be positioned up to 10 mm closer to the face for personalized shading. The RPHA 31 also accommodates second-generation SMART HJC Bluetooth communication systems, which are sold separately.

The RPHA Premium Fit interior uses advanced antibacterial fabric with moisture-wicking and quick-drying properties. Crown and cheek pads are removable and washable, while 3D-contoured cheek pads and interchangeable cheek pads across all sizes help support a custom fit. Reflective material adds visibility, and the elongated shell with extended chin EPS provides a full face-level fit. This size XL helmet weighs 102.4 ounces.

Features:

• PIM Evo Shell: Uses carbon-aramid hybrid and natural fiber reinforcement materials for shock-resistant performance, comfort, and lightness.
• Multi-Density EPS: Helps support impact protection inside the helmet.
• Aerodynamic Shell: Reduces air resistance and promotes stability at higher speeds.
• Ventilation System: Provides full front-to-back airflow through two intake vents and four exhaust vents.
• HJ-39 Shield: Pinlock 120XLT DKS467 ready, with 99% UV protection and an anti-scratch coating.
• Integrated Sun Visor: Smoke-tinted, anti-fog coated, and operated through a bottom-positioned mechanism.
• Sun Visor Adjustment: Multi-step positioning allows the visor to move up to 10 mm closer to the face.
• Shield Holder: Helps reduce noise and drag forces while holding the visor securely.
• Premium Fit Interior: Antibacterial fabric provides moisture-wicking and quick-drying performance.
• Washable Interior: Crown and cheek pads are removable and washable.
• Custom Fit: 3D-contoured cheek pads and interchangeable cheek pads across all sizes support personalized fit.
• Communication System Accommodation: Designed to accommodate second-generation SMART HJC Bluetooth communication systems, sold separately.
• Reflective Material: Adds reflective detailing to the helmet.
• Full Face-Level Fit: Elongated shell and extended chin EPS provide an encompassing fit.
• Helmet Weight: 102.4 ounces.