Airfly Sunglasses Replacement Spare Free Size Lenses, Lenses, Gray,

Visible light transmittance: 25% to 85% UV protection rate: 99% or more This is a special lens that can change color from darker to clearer with just one lens. These lenses are perfect for people who find it inconvenient to switch between clear and tinted lenses, or who don't want to carry multiple lenses. Mainly for those who participate in sports during the day or at night, such as cycling, running, or golf.