The HJC RPHA-ST helmet is constructed from Advanced P.I.M. (Premium Integrated Matrix), a composite of carbon fiber, fiberglass, aramid and organic fibers resulting in a remarkably strong and extremely lightweight helmet. An integrated internal sunshield drops down with the flick of a side mounted lever for keeping the rays at bay.
- "ACS" Advanced Channeling Ventilation System: Full front to back airflow flushes heat and humidity up and out
- SilverCool Plus Interior: Premium soft feel with Ginkgo Extract, moisture-wicking and odor-free interior with advanced silver anti-bacterial fabric. Crown and cheek pads are fully removable and washable. All sizes of cheek pads are interchangable in all helmet sizes.
- 5 Year Limited Warranty: For the original purchaser, guarantees the helmet to be free of defects in materials and workmanship
- Weight: XS to SM 3.18 lbs. (1,445 +/- 50g ) MD to LG 3.26 lbs. (1,480 +/- 50g ) XL to 2XL 3.35 lbs. (1,520 +/- 50g)
- Max Air-flow Top Vent: Variable air flow is adjusted by glove-friendly intake vent