The edge of the frame is contoured to fit your face, providing full coverage that prevents droplets and debris from reaching the eyes. it is also large enough to fit over prescription glasses without pressing, bringing security to your everyday routine. The safety goggles are impact-resistant, scratch-resistant, and ventilated to prevent fogging, so the view through the lens stays crystal clear. Made of durable plastic, the edge of the frame is flexible enough for comfort, and the wide elastic band allows the protective eyewear to fit a range of head sizes. The nonporous material is easy to wipe clean and completely BPA free.