Distributor Kimberly Clark 18629 V90 Jackson Safety Shield Goggles
Features the MONOGOGGLE* XTR* with indirect ventilation & polycarbonate shield for full face protection. Shield is detachable from google. Curved face shield conforms to face for added protection. Can be used over most prescription eyeglasses.
Z87+ or High impact standard glasses must pass a much more stringent set of tests than the basic or Z87 impact standard. Z87+ glasses must pass the “high mass” test which consists of dropping a 500 gram pointed weight from a height of about 5 feet onto the lens. It also must pass the test of having a ¼” steel ball shot at the lens. The velocity varies which the product (glasses = 102 mph from a distance of 150′, goggles = 170 mph from a distance of 250′ and 205 mph from a distance of 300ft). The bottom line is that the high impact standard (the Z87+) offers much better protection. If you are going to wear eye protection it may certainly be worth your while to get the added protection.