The Wiley X SG-1 Goggles are lightweight and designed to eliminate tunnel vision, keeping your view unobstructed. The changeable lenses include a foam Facial Cavity that protects your eyes from dust and dirt. Wiley X SG-1 meets the MIL-PRF-32432(GL) ballistic safety standards for optical quality and high mass/high-velocity impacts. Features: Completely Matte Black Frame Foil lens coating provides anti-fog protection Flight Deck Approved Interchangeable lens system Foam-lined lenses block excess light, dust, and wind Medium to Extra Large Fit 100% UV protection Kit Includes: Clear Lens 90% VLT Smoke Lens 15% VLT Elastic Goggle Strap Temple Arms Adjustable Neck Cord with Rubber Temple Grips Wiley X Zipper Top Case Microfiber Cleaning Cloth Anti-fog Wipe Instruction Booklet Measurements: Bridge Size (mm): 24 Lens Width (mm): 60 Lens Height (mm): 36 Temple Length (mm): 130 Compliance: ANSI Z87.1-2015 CE/EN166 U.S. FEDERAL OSHA 1910.133(b)(1)(i) STANDARD MIL-PRF-32432(GL) BALLISTIC STANDARD NSN# 4240-01-504-0994