The 100 percent strata clear goggles are purpose built for exceptional performance and comfort at a low cost the strata arms you with high end features at a value that enables you to put in those extra laps the curvature of the anti fog and scratch resistant lens ensures that you get a large unimpaired field of vision these 100 percent goggles also feature a flexible urethane frame that offers increased durability and a combination of matte and gloss finishes finally the 40mm silicone