Bel-Art Safety Goggles; Vinyl, Polycarbonate Lenses (H24873-0000) Goggles are ANSI Z87.1-2003 compliant; adjustable elastic headband is 13mm (1/2") wide Soft, transparent vinyl construction Flexible shape offers snug fit to face and nose Lenses are made of transparent polycarbonate; will fit over standard eye-glasses comfortably Made of soft, clear, flexible vinyl that conforms to the face and nose, these goggles have 4 vents to reduce fogging