A protective goggle designed to specifically address the needs of the firefighter. It has a hard coated outer lens and an anti-fog inner lens with baffled top and bottom vents. The optically correct lens can be worn over glasses. The silicon strap is designed for comfort when worn on the head and may be stowed on the helmet. Strap tension is adjustable while wearing gloves. MATERIAL - Silicone frame and strap. Apec lens and polymer alloy components. COLOR - Black SPECIFICATION - Designed to meet the performance specifications of NFPA 1971-1997 Edition ANSI Z87.1 HAZARD ASSESSMENT - Heat, impact, splash, smoke, particulate matter, and chemicals. APPLICATIONS - Structural fire fighting operations and other emergency operations where there is a threat of fire. Designed to meet ANSI Z87.1 for use where certain physical hazards are likely to be encountered, such as during non-fire-related salvage, rescue operations, emergency medical operations, and victim extraction. PRODUCT WEIGHT - 6 oz. DESIGNED TO FIT AS A HELMET ACCESSORY - All helmets used in fire fighting and associated hazards COMPETITIVE ADVANTAGE - The A-TAC is the only known goggle specifically designed for the needs of the fire fighter. Designed to meet the rigid standards of the NFPA 1991-1997 standard. Passes the 500° 5 minute heat exposure test of the standard. Hard coated outer lens with a superior anti-fog inner surface designed to meet the needs of this specific environment. Fits over most prescription, safety and sun protective spectacles.