These 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 sports and leisure activities. They absorb dazzling light reflections, enhance contrasts and improve colour perception. Red Bull branding. Product Code: