All the good stuff on duty here. Super lightweight, polarized polycarbonate lenses, TR90 grilamid nylon frame with megol nose pads all keep Sentry on guard against glare and harmful UV rays. FEATURES: Polarized Injection Polycarbonate lenses. 8 Base Lens Curvature. Megol nose pads. Grilamid frame material. Microfiber cleaning/storage bag. Lifetime Warranty covers manufacturing defect in materials or workmanship.