Strata Mud MX goggles are specifically designed to keep your protected on a muddy track. Strata MX goggles are constructed with durable yet flexible urethane and come equipped with an anti-fog, scratch-resistant Lexan lens, helping to keep your goggles from fogging up. The 40mm silicon-coated strap will hold your MX goggles in place and vented, high-density foam will seal out debris while keepin' your lenses clear. Need prescription motocross goggles? The SportRx opticians will tailor custom prescription goggle inserts for crystal-clear vision in your Strata Mud prescription motocross goggles.