Material: Nylon (mesh multi-cam is polyester). Designed for use with Team Wendy’s EXFIL Ballistic helmet, W Shroud, and rails. Easy installation and removal via hook/loop attachment allows rapid change of camouflage helmet pattern, no tools required. Close fitting cover creates a secure fit to the shell that also protects the helmet finish. Loop patches on the cover attach gear or patches to the outside of the helmet.