This is great for day and night driving and for protecting your eyes from devices' screen brightness. It has polarized lenses that allow you to see clearly during activities such as driving, skiing, boating and fishing. It can protect your eyes from UV rays, blue light from your computer and headlights of vehicles while driving. Be comfortable and stylish at the same time. The Night Vision Photochromic Glasses are trendy with their textured metal hinge and smooth curved temple tips. OUR GUARANTEE We are confident that we offer some of the best products on the market. Therefore, we provide a 30-day guarantee. We will make every effort to ensure that you are completely satisfied with your purchase. Online shopping can seem daunting. We want you to know that there is absolutely zero risk of purchasing something. We won't make it difficult if you don't love it. We offer email and ticket support 24 hours a day, 7 days a week. If you require assistance, please contact us. Please contact customer service if you have any problems with your purchase.