Jools, The chin piece is held in place by a "Pop Stud" either side that's all!!!! They swivel around a metal point which you can loosen with a flat head screwdriver to remove for cleaning etc....... The actual chin piece is a light weight material certainly not up to a full face frontal impact....... I think in fairness Roof market them as an open face helmet and don't claim to offer any protection from the chin piece???? Regards ScottyB |