3M™ SecureFit™ Safety Glasses 400X Series SF416AS-BLK-EU, Black/Black Frame, Anti-Scratch, Orange Mirror Lens, comprise of a rimless lens and wide flexible temple arms for solid side protection and popular to be used in combination with Ear Muffs. Temples also feature 3M™ Pressure Diffusion Temple Technology (PDT) which allows the safety spectacle temples to naturally adjust to individuals head sizes giving wearers a secure and comfortable fit. Reduces slippage from head movements. Contoured brow guard rests comfortably against forehead and helps provide additional coverage from flying particles. Soft nose bridge for a comfortable fit.