SecureFit protective eyewear features pressure-diffusion technology that naturally adjusts to individual head sizes for a natural fit as soon as you put them on. Self-adjusting design adapts to each wearer and provides a snug fit that keeps the glasses securely in place. Removable, foam-lined gasket helps keep debris out of your eyes while providing comfort and cushioning. Dual-injected, padded temple touchpoints enhance comfort over your ears. Universal construction eliminates the expense of stocking multiple frame sizes at jobsites to accommodate different people. Impact-resistant polycarbonate lenses absorb 99.9 percent UVA/UVB/UVC rays to maintain healthy vision when used outdoors. Anti-fogging properties help maintain visibility in hot and humid environments to help increase usage on the job.SecureFit protective eyewear features pressure-diffusion technology that naturally adjusts to individual head sizes for a natural fit as soon as you put them on. Self-adjusting design adapts to each wearer and provides a snug fit that keeps the glasses securely in place. Removable, foam-lined gasket helps keep debris out of your eyes while providing comfort and cushioning. Dual-injected, padded temple touchpoints enhance comfort over your ears. Universal construction eliminates the expense of stocking multiple frame sizes at jobsites to accommodate different people. Impact-resistant polycarbonate lenses absorb 99.9 percent UVA/UVB/UVC rays to maintain healthy vision when used outdoors. Anti-fogging properties help maintain visibility in hot and humid environments to help increase usage on the job.