Prescription Cycling / Running Eyewear.
Tifosi Tyrant 2.0. Gunmetal LNF
The Gunmetal frame comes with a Photochromic Lens.

Frame Features
Grilamid TR-90 Material - a homopolyamide nylon with extremely high alternative bending strength, low density and high resistance to UV damage.
Hydrophilic rubber ear and no pieces for no-slip fit.
Adjustable nose pieces.
Vented lenses for improved air circulation.