Anon Windham WaveCel HelmetLeading safety features, a durable hardshell design, and one hand fit adjustability for distraction free comfort. 657g; WaveCel helmets are designed to fit closer to the head, providing a snug, comfortable fit. WaveCel behaves like a network of hundreds of interconnected shock absorbers connecting your head and the outer shell of the helmet. WaveCel helps distribute the impact energy through its network of cells, reduces impact forces like the crumple