The Aethon builds on the success of the 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 superior flexibility and enhanced comfort compared to full frame Shield lens designs. Additionally, the Aethon includes a grip-enhancing removable brow bar. When removed, this offers 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.Aethon provides full coverage protection with a cutting edge sport design that is perfect for those in need of performance eyewear. It is equipped with a removable brow bar for a customizable look and feel.Key Features:Made of Grilamid TR-90, a homopolyamide nylon characterized by an extremely high alternative bending strength, low density, and high resistance to chemical and UV damage,Hydrophilic rubber ear and nose pieces for a no-slip fit,Adjustable ear and nose pieces for a customizable, comfortable fit,Vented lenses improve air circulation and prevent fogging,.Technologies:Adjustable ear pieces,Adjustable nose pieces,Case included,Glare guard,Grilamid TR-90 frame,Hydrophilic rubber,Optically decentered,Polycarbonate Lenses,UV Protection,Vented Lenses,.