Red Bull Spect Eyewear Tain Sunglasses, Matte Black, L

TR90 is a thermoplastic plastic developed in Switzerland that is extremely durable, flexible and lightweight. Rubber ensures optimum grip. The transition from lens to frame is seamless. This does not provide an attack surface for wind. The "seamless lens construction" creates a particularly aerodynamic front. Polycarbonate lenses are durable, shatterproof and offer excellent UV protection.