TR90 lightweight full rectangle Frame Grey/blue Polycarbonate lens for resistance and optical clarity Embedded ProBlu 420 technology in the core of the lens Nylon/PC curved frame This unisex and bold frame comes with PrB lenses absorbing 80% of harmful blue light at 445nm Supplied with hard case, microfibre cloth, user instruction Lens marking 2C-1.2 1 F Frame marking EN166 F