HIGH PERFORMANCE FACESHIELD LESS WINDOW W/4″ CROWN DEEPER CROWN PROTECTOR EXTENDS PROTECTION WITHOUT INCREASING WEIGHT. FITS EASILY OVER REQUIRED SPECTACLES OR RESPIRATORS. USES 3-C RATCHET HEADBAND OR THREE PROTECTIVE CAP MOUNTING MECHANISMS AND FEATURES A SLOT/PIN MECHANISM WITH LOCKING CAMS. THE CHANNEL GRIP SYSTEM MOUNTS WINDOWS AND GRIPS THEM IN PLACE IN A DEEP RECESSED CHANNEL TO SECURE FROM DIRT AND DEBRIS. THIS FREE FLOATING HEADGEAR RESISTS HEAT AND OFFERS DURABILITY. ADAPTER INTEGRATES A WIDE VISION 8″ X 17″ WINDOWS AND SCREENS THAT OFFERS 40% MORE PROTECTIVE AREA. FACESHIELD NOT INCLUDED.