MODEL SPECIFICATIONS Frame Type: Open Lens Weight: 25 grams Fit: Large, Medium, Small FRAME 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 pieces for a customizable, comfortable fit. Vented lenses improve air circulation, prevent fogging. INCLUDED LENSES AC Red41.4% LT Clear95.6% L.T. Smoke15.4% L.T.