4 Elements - Shooting Glasses / Eye protection Clay Pigeon / eyewear skeet glasses. These 4 Elements Classic shooting glasses and eye protection offer the user a great field of vision essential for any fieldsports user. They are incredibly versatile and simply interchangeable. 3 interchangeable lenses withstand high impact (clear / smoke / yellow), UV400, Shatterproof. Suitable for various occasions and weather. A simple lense change system. Certificate : meets with ANSI Z87.1 high velocity impact safety standard & military requirement MIL-PRF-324432 & CE EN166 standards Material : 2.7mm thickness of polycarbonate lenses 4 Elements - Shooting Glasses / Eye protection Clay Pigeon / eyewear skeet glasses