SWANS CHALLENGER is a sports sunglass that can be adjusted to the shape of the user's head with flexible temples. The frame design that wraps your head prevents slippage and provides a comfortable fit. It is a basic model that secures the vision required by the user and gives maximum support for your performance. For lens, the photochromic technology that changes color depending on the amount of ultraviolet rays is used.
・Lens color : Photochromic Clear to Smoke Lens
・Frame color : Matte clear smoke x Black x Black
・Size : W:147mm × H:44mm
・Weight : 32g
・Curve : 8curve
・UV protection rate：more than 99.9%
・Visible light transmission rate : 17~84%
・Lens material : Polycarbonate
・Frame material : Nylon
・Accessories : Semi hard case, Instruction paper
・Convertible lens *need to buy spare lens separately.