Protecto-Shield Prolok headgear provides impact and splash protection and is specially designed with a chemical splash drip edge to prevent fluids from splashing down inside the visor. Features adjustable headgear, a simple visor replacement system and quality optics constructed of tough thermoplastic with heat resistant browguard. Easy sizing and tension adjustment for individual visor positioning. Meets ANSI Z87.1-2003 and CSA Z84.3.