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 headCurved temples apply pressure to the less sensitive back of the head, instead of the temples, achieving a comfortable fit even during rapid head movementAdjustable ratchet temples allows user to adjust lens for facial features and eyeglass positionSoft one-piece nose bridgeOptional contoured brow guardU6 rated polycarbonate lenses absorb 99.9% of UVA, UVB, and UVC rays between 200 nm and 380 nmDesigned to offer eye protection with all-day wearability for workers with prescription eyeglasses