RED BULL SPECT DAKOTA SUNGLASSES - SHINY RED/SMOKEThese glasses can be optically glazed. No more compromises when it comes to mirror colour: for the first time, the collection is available with high quality MPO mirrors in your individual prescription in bold colours. TR90 is a thermoplastic developed in Switzerland that is extremely durable, flexible and lightweight. Polycarbonate lenses are robust, break resistant and offer excellent UV protection. Polarizing lenses are particularly advantageous for