Heat-resistant goggles will not melt, drip or ignite at 350 degrees for five minutes. Dual anti-fog lenses provide clear vision. Lightweight and comfortable enough for any work environment. Adjustable side vents increase air flow. Flame-retardant pivoting headband holds goggles securely and allows for comfortable placement. Cushioned eyecups provide comfort for extended wear. Adjustability Features: Strap; Material(s): Polycarbonate; Antifog: Yes.