COMPLETE UV PROTECTION: Polarized lenses eliminate UVA/UVB rays.Exquisite packaging, perfect gift for friends!Many sunglasses that are advertised as polarized actually are not.You can do a simple test before purchasing.Find a reflective surface and hold your glasses so that you can see the surface through one of the lenses.Now slowly turn your glasses to a 90 degree angle and watch whether the reflected glare decreases or increases.If your sunglasses are polarized, you will notice a significant reduction in glare. Tips: To avoid damage, avoid using household cleaners or soaps and use the clean water and cloth provided.To avoid deformation, do not store sunglasses in adverse environments such as high temperatures. How to care for sunglasses: 1. You can dry them gently with a clean, soft cloth.To avoid damage, never clean your sunglasses with paper towels or clothing, as this can introduce dust and fibers into the lenses and leave scratches.Additionally, avoid using household cleaners or soaps.While some mild soaps will not harm lenses, particularly strong soaps are strong enough to slowly dissolve lens coatings.2. Never leave sunglasses in the car in direct sunlight, especially in summer.Exposing the lens to oven-like temperatures in a car for a long period of time can cause damage.3. If the lens is soaked in sea water or salt water, please clean it with clean water as the lens will be affected by salt water.