UV400 Protection: The ROCKBROS polarized sunglasses are made of high-quality PAC materials, offering excellent visible light transmission (without being too dark). With 100% UV400 protection coating on the lenses, harmful UVA and UVB rays are effectively blocked, protecting your eyes. Comfortable Wearing: Adjustable rubber nose pads fit various nose and face shapes, and the glasses won't slip, even when you sweat. HD Lenses: The lenses feature a high-quality polarized coating and excellent filter technology, providing a clear, wide, and true field of vision. Stylish Appearance: Full-frame design, highly elastic lenses and frames ensure durability and comfortable wear. The gray coating gives the glasses a stylish look.