These safety glasses have anti-scratch and anti-fog smoked lens. These glasses are extremely lightweight and ideal for general protection weighing only 23 grams. These are an economic choice of safety eyewear for essential protection. It protects against impacts and uv radiation. They have been designed to be suitable to wear for prolonged periods of time as it does not create distortion or fatigue. These glasses have good colour reognition - TSR (Traffic Signal Recognition).