Leupold's In-Fused polarized technology uses an advanced manufacturing process that fuses the polarization film between two of the lens layers; Made from ballistic-rated materials, all performance eyewear frames are ultralight, flexible, and maintain structure under stress; Daylight Max provides UV protection for optimal performance in bright conditions; Provides all day comfort with no-slip, soft-touch rubber bridge pads; Guard-ion is a hydrophobic lens coating that sheds dirt and water for a maintenance-free, clear, crisp image; DiamondCoat is a hardened surface coating that reduces surface scratches; Compatible with prescription lens requirements