Tifosi: The dynamic Aethon builds on the success of the popular Alliant model, with an even taller lens ( +3mm ) and a less swept-up style, offering greater coverage across the full width of the face.As a semi-rimless design, the Aethon also offers increased flexibility, compared to full frame Shield lens designs, for enhanced comfort and peak performance.An additional new feature is the Aethon’s grippy, removable brow bar. While looking very cool in place, it can be removed to offer greater airflow over the top of the lens in warm conditions and a less obstructed view through the upper half of the lens when riding on the drops or tri-bars. The sporty crystal smoke / white Aethon comes equipped with Tifosi's most versatile Fototec Light Night photochromatic lens, with a Light Transmission range from 27.7% ( fairly dark ) - 75.9% ( virtually clear ) . Light Night is colour-neutral for zero colour distortion.Tifosi's Fototec lenses adjust rapidly to changing light conditions, utilising variable tint technology embedded in the lens ( not just a coating on top of the lens ). Whatever the light condition, Fototec lenses enhance your performance and increase your comfort by supplying superior clarity and protection.The Aethon includes a zipped hardshell case and a microfibre cleaning pouch. 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 lenses are shatterproof, scratch-resistant and optically decenteredVented lenses increase air circulation & reduce foggingFits L-XL face size35 grams100% protection from harmful UVA/UVB raysLifetime Warranty against manufacturer defects*