Optic Nerve Halogyn IC Sunglasses Hardside polycarbonate frame polycarbonate lens mirrored 2.5" high 3" wide Focal Point Lens Technology eliminates distortion for crisp, clear optical clarity 100% UV Protection to protect your eyes from harmful UV light. Active Lens Venting to increase air flow and eliminate fogging Adjustable bridge rest for custom fit and secure performance Limited Lifetime Warranty