Details 3M's innovative temple design features slotted ribs that provide comfortable pressure equalization, allowing the temples to flex and self-adjust to the size of the wearer's head. Cuved temples apply pressure to the less sensitive back of the head, instead of the temples, achieving a comfortable fit even during rapid head movement. Adjustable ratchet temples allows user to adjust lens for facial features and eyeglass position. Soft one-piece nose bridge 3M™ SecureFit™ 3700 Series is designed to offer eye protection with all-day wearability for workers with prescription eyeglasses. Adjustable ratchet temples allow the user to adjust lens for facial features and eyeglass position. Since prescription eyeglasses may not be anti-fog coated, workers can choose between a standard anti-scratch coating or 3M™ Scotchgard™ Protector Anti-Fog Coating. For safety spectacles that fit over prescription glasses and feature adjustable ratchet temples, use 3M™ SecureFit™ Overspectacles 3700 Series. Our lightweight overspectacles are designed to fit over the users existing glasses to provide personalised protection. The adjustable ratchet temples provide angle adjustment points on the temple to help ensure a secure fit. They also feature Pressure Diffusion Temple (PDT) technology and a soft touch nosepiece to help provide all-day comfort. The polycarbonate lens is available with 3M™ Scotchgard™ Anti-Fog and anti-scratch coatings for increased durability and improved vision. Available in a range of frame and lens colours. Available with a contoured brow guard. Meets the requirements of EN166-2001 standard as an impact rated spectacle