Polarized sunglasses lens, it is effectively eliminate and filter the scattered light in the light. so that the light can be transmitted into the eyes of the normal axis of the visual image of the eye. So clear and natural vision, such as the principle of venetian blinds. Light is adjusted to the same light into the room, the natural scenery looks soft and not dazzling. Polarized lens can help you filter out sunlight reflected glare, and protect you eyes suffered from harmful UVA and UVB rays, clear and natural vision you are worthy having.Package included:1 *sunglasses1 *glasses cloth1 *glasses case1 *glasses bag1 *glasses test cardWHY YOU SHOULD CHOOSE BIRCEN SUNGLASSES??BIRCEN provided with multiple lenses colors are available for this style. Fashion unisex design, is perfect choice for enjoying driving, shopping, vacation &all outdoor activities; as high fashion accessory and daily wear all year round.?Super light-weight design can hardly feel them on your face, gives you stress-free wearing experience which ensuring that you will be able to rock these sunnies you through all seasons in comfort and style!?Each pair of BIRCEN sunglasses with 100% UV400 polarized lens, High-definition lens gives you a natural clear vision, giving you full protections when driving or outdoor activities. Stylish designs fit in well any cloth matching.?If you have any question or the product has any issues, tell us first, will make you satisfied. Your satisfaction is our motivation.