Equal parts fashion and performance sport. The Stronghold is tough yet refined. Bold personality and target coverage define this banger new model. Look deeper and you will appreciate the unobstructed field-of-view and the action-ready frame details. Key Features of the Smith Stronghold Sunglasses: Medium Fit / Large Coverage Carbonic TLT Lenses Evolve Frame Material Hydrophilic Megol Nose and Temple Pads 6 Base Lens Curvature Frame Measurements 99-n/a-125