Tifosi: The Alliant offers 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.ENLIVEN BIKE LENSSpot hazards, read textures and experience a more vivid ride with Enliven Bike.Tifosi’s new Enliven Bike lenses use Colour Capture Technology 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. Grilamid TR-90 frame is lightweight and durableHydrophilic rubber ear and nose pieces provide a no-slip fitAdjustable nose and arm pieces for a comfortable, customised fitPolycarbonate Enliven lens is shatterproof, scratch-resistant and optically decenteredVented lenses increase air circulation & reduce foggingFits L-XL face size30 grams100% protection from harmful UVA/UVB raysLifetime Warranty against manufacturer defects*Compatible with the RX03A optical adapter