The Tifosi Alliant Enliven Bike Sunglasses offer a multi-vented half frame design to take your performance to the next level. Using an innovative, highly ventilated shield lens design, the Alliant is undoubtedly the model of choice for the ultimate competitor. The stylish crystal black Alliant comes equipped with Tifosi’s Enliven Bike Contrast Enhancing lens, to fine tune the wavelengths of light that matter most – making greens, reds and blues all pop with definition. Regular colour-tinted lenses enhance some colours but distort others, but Tifosi’s Enliven Colour Capture Technology enhances all of the key colours without distortion. Includes a zipped hardshell case and a microfibre cleaning pouch. Tifosi Alliant Enliven Bike Sunglasses Features Grilamid TR-90 frame is lightweight and durable Hydrophilic rubber ear and nose pieces provide a no-slip fit Adjustable nose and arm pieces for a comfortable, customised fit Polycarbonate Enliven lens is shatterproof, scratch-resistant and optically decentered Vented lenses increase air circulation & reduce fogging Fits L-XL face size Weight: 30 grams 100% protection from harmful UVA/UVB rays Compatible with the RX03A optical adapter