CHEMICAL GOGGLES, 552 SOFTSIDES, CLEAR ANTI-SCRATCH, NON-VENT|PIP's 552 Softside glasses are made with a direct vent, for protection against flying dust and debris. They are made of a soft PVC body with a clear anti-fog polycarbonate lens, and have an elastic headband. The glasses fit over most prescription eyewear. Clear blue frame, clear lens with anti-scratch coating.