Proguard Advantage 1 - Stealth Lock Industrial Safety Helmet.. Model HG1-WHG3RS Normal color option : White, Yellow, Red, Orange, Blue, Brown, Grey Webbing harness / stealth lock (Ratchet) .ABS shell fixed with patented Stealth-Lock which is an easily adjustable, comfortable and user friendly locking system. .This ratchet headband which specially designed together with 8-point terylene webbing suspension system provides essential crown clearance to absorb impact energy. .Comply to SIRIM MS183, ANSI Z89.1 & EN397