UVEX Flex Seal eyewear offers exceptional advantages over other over-the-glass (OTG) goggles for all day comfort, superior fit and climate adaptability. Their lightweight, cured silicone body conforms to almost any facial profile to assure the highest level of comfort and eye protection and they offer exceptional chemical splash and impact resistance. Flex Seal goggles have an indirect venting system and fit over most prescription eyewear, so once workers try them, they'll never want to wear anything else.