Description of Smith Interlock Spoiler Sunglasses - Square Tortoise / Polarized Brown The new Spoiler’s full-frame design and sharp detailing with metal accents keep the wearer looking fresh while the underlying technology ensures that adapting to ever changing light conditions is a breeze. Engineered specifically for a men’s medium to large fit, all day comfort is easily achieved. Features: Megol temple pads TLT Optics Carbonic Lens TR90 Grilamid frame 8 Base shiels lens Interchangeable Lenses Interlock Interchangeable