JT lenses pass the American ASTM standard and the European CE Standard, but testing doesn't stop there. JT shoots them, stomps them, hits them with 1/4 inch steel balls at 400 fps, runs over them and lets the dog chew them. And that proves one thing - JT lenses meet an even higher standard - the JT Standard. With a fog-resistant coated thermal inner lens that can be cleaned with a JT micro fiber cloth, the standard has been lifted even higher to include pure optical style.

Dual-pane Spectra Thermal Lens for reduced fogging. Will fit JT Proflex, JT Flex-8 and JT Proshield goggles. Replacement thermal lenses for the Spectra series of JT goggles.

Item Package Quantity: 1. Color: Smoke. Brand: JT. Date First Available: February 22, 2013. Best Sellers Rank: #669,647 in Sports & Outdoors. Customer Reviews: 4.8 out of 5 stars 69 ratings 4.8 out of 5 stars. : B00BJNB470. Part Number: ?23308. Manufacturer: ?JT. Suggested Users: ?Unisex. Color: ?Smoke. Brand Name: ?JT. Package Weight: ?0.02 Pounds. Item Package Dimensions L x W x H: ?7.3 x 4.4 x 3.3 inches.