ROCKBROS Cycling Sunglasses Photochromic Polarized Sports Glasses UV400 UnisexUV400 Protection: The lenses provide UV400 protection, effectively blocking UV rays and protecting the eyes from harmful sun exposure. Clear Polarized Lens: The polarized lenses filter out reflected light and glare from surfaces like roads, water, snow, and glass, reducing potential safety hazards caused by unclear vision. Photochromic Lens: The lenses adjust their tint based on UV light intensity, providing optimal eye protection whether in low light