Polarized polycarbonate injection-molded lenses cut glare and offer 100% protection from harmful UVA and UVB raysBlack Backpaint and Blue Print frames have gray polarized lenses; Tortoise frames have brown polarized lenses; both block 85% of visible lightGrilamid frame material; custom metal logo plaquesBase 8 lens curvature wraps for side coverageSporty Megol nosepads keep sunglasses securely in place when you're