HJC RPHA 91 Solid Modular Motorcycle Helmet

HJC RPHA 91 Solid Modular Motorcycle Helmet. The RPHA 91 is HJC's new modular touring helmet that was engineered for all-day comfort. The new Premium Integrated Matrix EVO shell (P.I.M. EVO) provides enhanced shock-resistant performance and is lightweight by using reinforcement materials that include carbon-aramid, carbon fiber, glass fiber, organic non-woven fabric, and linen fiber (natural fiber). The new distortion-free, HJ-37 face shield and HJ-V17 sun shield provide a clear and increased peripheral view for the rider. Designed to perfection, the chin bar locking system now has a hidden closure point that allows for smooth contact and less pressure on the cheek area. Keeping noise levels to a minimum is the RPHA 91 3D-engineered low-noise interior that is focused to reduce road noise significantly. Also Included with this is the neck roll system to ensure you drown out the noise. For convenience, the EPS design accommodates riders with eyewear. The RPHA 91 will also accept the second-generation Smart HJC Bluetooth systems. Features P.I.M. (Premium Integrated Matrix Plus) EVO shell Antibacterial interior Distortion-free HJ-37 shield provides clear and wide view HJ-V12 3-step integrated sunshield is adjustable for optimized position 2-way pivot chin bar reduces wind noise and air drag, and offers a more compact profile in the up position 2nd generation Smart HJC Bluetooth® ready Maximum performance top and low vents Curved 3D visor and ratchet reduces air turbulence and noise Ventilation system provides maximum air circulation, cooling, and defogging Neckroll system offers reduction of wind noise 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 2XS 51-52 6 3/8 - 6 1/2 20 - 20 1/2 XS 53-54 6 5/8 - 6 3/4 20 7/8 - 21 1/4 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 59-60 7 3/8 - 7 1/2 23 1/4 - 23 5/8 XL 61-62 7 5/8 - 7 3/4 24 - 24 3/8 2XL 63-64 7 7/8 - 8 24 3/4 - 25 1/4 3XL 65-66 8 1/8 - 8 1/4 25 5/8 - 26 4XL 67-68 8 3/8 - 8 1/2 26 3/8 - 26 3/4 5XL 69-70 8 3/4 - 8 3/4 27 1/4 - 27 5/8