Semi-Rimless Photochromic (Auto-Tinting) Sunglasses

Do you spend long hours in outdoor activities?you need to be able to protect your eyes under any condition!These Photochromic Sunglasses combine advanced technological features and a sleek style, the Photochromic lenses are almost clear when indoors/at night and automatically darken when exposed to sunlight!The lenses will react to different degrees of ultraviolet light & darken as needed,providing your eyes with the best protection for any situation!the glasses also feature highly-adjustable ear hooks and nose grip,making them perfect for tactical use & extreme sports!Engineered for maximized airflow for optimal ventilation & comfort!Features: Photochromic sunglasses lens will change color depending on the intensity of UV light and temperature. Semi-rimless architecture extends coverage to help protect your eyes while giving you an expanded field of view. UV400 Lenses offer top UV Protection filtering 100% of all UVA, UVB, UVC and harmful blue light up to 400nm. These glas