Goggles Are Set to Military (MIL-DTL-43511D) And ANSI-Z87-1 Standards For Ballistic Eyewear Protection | The OTG Goggles Have Been Specifically Designed To Fit Over Your Prescription Glasses Or Sunglasses With A 7/8†Cut Out On Each Side For The Temples | 2mm Thick Polycarbonate Anti-Fog And Anti-Scratch Lenses and UV 400 Protection Treatment | Moveable Hinges And Adjustable Strap Allow Goggles to Stay In Place While Mobile. In Addition, 3/8" Foam Padding Around The Tactical Goggles And Top And Bottom Vents Provides Long Lasting Comfort And Breathability | Cleaning Cloth And Cover Included To Protect Goggles When Not In Use