Z87.1 Certified Safety Glasses - Not just a simple certified, but also shows our passion for top-notch eye protection performance. We are the world's most professional eyewear manufacturer, which makes us quite competitive in this field. Besides, our glasses have shields on both the top and sides. Not only cool, but also sturdy and protective.ANTI-FOG LENS - Another important feature of our glasses is the anti-fog lens. It comes with double-sided coating, which keeps the vision clear even when drinking hot water. Besides, its anti-fog function can last for about 2 years.Various Use Occasions - the glasses can be used in different occasions, such as hospital, laboratory, construction site, riding, woodworking, carpentry, cycling, etc. It can keep your eyes and help you finish the job comfortably.Stylish & Comfortable - improved many times for the perfect fit. Actually, we never forget the original purpose of "not only stylish and cool, but also daily use and comfortable"