What makes this eyewear so comfortable? * Frame: Self-adjusting, contoured piping in a bold, modern color palette for an infusion of style. * Nose Pad: Soft, adjustable nosepads for greater personalization. * Lens: Lightweight polycarbonate lenses absorb 99% of UVA & UVB rays. Meets the requirements of ANSI Z87.1-2010. * Temple: Dual-injected, padded temple touchpoints for added comfort over the ears. The 3M SecureFit standard safety glasses are made of polycarbonate, are packaged 20 per case, come in clear and meet ANSI Z87.1-2010 standards. Provides 99.9 % of UV Protection.Specifications:.Series: 400Special Features: Anti-Fog LensLens Material: Polycarbonate3M Number: SF401AFUV Protection: 99.9 %Standards Met: ANSI Z87.1-2010