Tifosi eyewear sledge interchangeable lens sunglassesthe tifosi eyewear sledge interchangeable lens sunglasses deliver oversized styling for maximum coverage and an ergonomic face fit with three vented lens options.the sledge glasses come with a wide field of vision created by a single polycarbonate lens that ensures intense protection against impacts and abrasions. The lens is optically decentred to create a more restful vision experience with a greater level of clarity. To keep your vision, clear the lenses are vented to prevent fogging and glare guard technology.the interchangeable lens system allows you to find the perfect coverage in any environment. The lenses are easy to switch in and out of the frame.the grilamid tr 90 frame construction keeps the glasses incredibly lightweight while offering rugged protection and added durability. The frame is comfortable with adjustable earpieces and hydrophilic rubber components that cushion the fit and stabilise its position.featuresadjustable earpiecescomes with protective caseglare guard technologygrilamid tr 90 frame constructionhydrophilic rubber componentsoptically decentred lensespolycarbonate lensesuv protectionvented lensesinterchangeable lens systembuy tifosi eyewear sport sunglasses from chain reaction cycles, the world's largest online bike store.