I have this helmet, I believe it is a motorcycle helmet. I've heard that these aren't the best option for downhill longboarding, but full face longboarding helmets are insanely expensive. But wouldn't
Amazon.com : TSG - Pass Pro Full-face Helmet w/Two Visors | Performance Helmet for Downhill Skateboarding, E-Skating, E-Onewheeling, Longboarding | Compact, Aerodynamic | Scratch Proof Visor, Matt Black, Small : Sports &