➤HD Polarized Sunglasses Provide UV400 Protection √UV400 Protection: UV400 protection is the highest level of protection that lens can have. It is considered to provide close to 100% protection against harmful ultraviolet rays √HD Polarized: Specially add polarized coatings to reduce the annoying glare reflected from roads, snow, water, and other horizontal surfaces, making the views clear without dazzling ➤Wrap-around Sunglasses Fit Over Prescription Glasses √ Polarized Sunglasses can be worn directly on existing glasses, saving many troubles for those who have to wear prescription glasses √ Ergonomic wrap-around design and little side lenses provide comprehensive glare protection, relieve eye fatigue and enhance vision, reduce the risk of driving ➤Lightweight & Flexible TR90 Frame Ensures Durability √TR90 is a kind of memory polymer material, which is the most popular ultra-light frame material in the world √Durable materials with super toughness can withstand high impact from outdoor sports and avoid damage to eyes and face due to frame fracture and friction Whether URUMQI Polarized Sunglasses fit over your prescription glasses? 1. Measure the widest part of your prescription frames left to right, this is the “width”. Next measure the height of the lens with frame included. 2. Make sure the URUMQI frame is slightly larger in width and height than your frame measurements: If your full-frame width is less than 5.59inch and frame height is less than 1.57inch, our sunglasses may fit your prescription glasses well; If your full-frame width is longer than 5.59inch OR frame height is larger than 1.57inch, please DON'T buy it!