The Leupold Switchback Polarized Sunglasses are comfortable on the range and around town. The Switchback will quickly become a favorite addition to your everyday kit. It has features that are sure to provide everything you need and nothing you don't. FeaturesANSI Z87+ Ballistic RatingBacked by Leupolds Lifetime GuaranteeDesigned - Machined - Assembled in the USADaylight Max-Provides UV protection for optimal performance in bright conditionsDiamondcoat Scratch Resistance-Reduces surface scratches with a hardened surface coatingGuard-ion hydrophobic coating-Sheds dirt and water for a clear, crisp imageIn-fused polarized lenses-Eliminates glare and keeps your eyes fresh on the water and in the fieldNo-slip bridge-Provides all day comfort with no-slip, soft-touch rubber bridge padsRx Ready-Compatible with prescription lens requirements