Tifosi eyewear radius fc sunglassesthe radius fc sunglasses are made from grilamid tr 90 a homopolyamide nylon characterised by an extremely high alternative bending strength low density and high resistance to chemical and uv damage hydrophilic rubber ear and nose pads prevent slippage while the vented lenses improve air circulation and prevent fogging featuresmaterial grilamid tr 90interchangeable lensesadjustable ear padsvented lensesbag case includedweight 24gbuytifosi eyewear acc