Ultra-lightweight frameless design. No-brow design increases upwards peripheral vision and limits interference with hard hat suspension systems. Polycarbonate lenses provide 99.9% UVA/UVB/UVC protection to help prevent eye damage like cataracts, retinal damage, and other conditions that can cause temporary vision loss. The wraparound frame has a base curve of 8.25 that extends the range of peripheral protection, as well as soft touch temples for comfort. Each pair of glasses come with a neck cord for securing them, so that the glasses are ready to protect at a moment's notice. The safety eyewear is manufactured to comply with the ANSI / ISEA Z87.1+ standard for personal eye protection. I/O Lens. Safety Glasses Style: Frameless; Arm Color: Gunmetal; Frame/Arm Material: Plastic; Lens Style: Single Lens.