Take the next step in comfort with SecureFit 400 Series Protective Eyewear. It features Pressure Diffusion Temple technology; soft, one-piece nose bridge; and dual-injected temples for optimal comfort. Curved temples apply pressure to the less sensitive portion of your head instead of your temples. Slotted ribs allow the temples to flex and self-adjust to your head size. Polycarbonate lenses absorb 99.9 percent of UVA/UVB/UVC rays. Anti-fog coating resists fog longer than traditional anti-fog coatings and lasts up to 25 washes in water. Brown lenses reduce overall brightness. Protective eyewear meets requirements for impact-resistance and Anti-Fog Performance of the ANSI-ISEA Z87.1 standard. They are perfect for challenging conditions and environments including hot/humid, indoor/outdoor, climate-controlled areas and more.