3M™ Versaflo™ M Series Headtops feature lightweight, compact and well balanced faceshields and helmets that can offer integrated protection from a range of respiratory, head, eye and hearing hazards with offerings for neck and shoulder coverage. The M-307 assembly includes a M 927-Visor and M 937 Faceseal. The M-927 visor is made of coated polycarbonate. The M-937 faceseal is made of flame resistant polyester. Hardhat complies to ANSI Z89.1-2003 Type 1 Class G.