Review on Skateboard Bike Helmet: Adjustable Ventilation & Removable Liners for Multi-Sport Use - Kids, Youth, Adult Sizes by Drexel Wortham

I bought this to protect my head at work after multiple concussions. Slightly comfortable, little shock-absorbing padding between the head and hard foam. Supplied with only two tiny strips of Velcro of different thicknesses around the inner plastic strap. The top vents let some heat through. Less movement of the outer shell towards my head than my hard hats when I bump into things. Light enough, it won't block your vision, there's access to your ears and goggles. Reliable so far, stays in place most of the time but I'm not moving very fast. Over-tightening the strap puts too much pressure on forehead scars and is a bit uncomfortable on the temples.