Split Time was designed for every day appeal but with features for on the go. The temples were designed to fit seamlessly while wearing a hat and the no-slip Unobtainium nosepiece keeps them comfortably in place. Universally flattering pilot lens shape Integrated side shields to combat backside glare Hat compatible frame and temple design Stress-resistant metal frame accents Constructed of lightweight O Matterand durable C5 metal No-slip Unobtainium nosepads:Increase grip with perspiration Three-Point Fit: Comfort and performance that holds lenses in precise optical alignment Frame suitable for small to medium faces Prizm lenses enhance color, contrast and detail for an optimized experience Plutonite lens material offers top UV Protection filtering 100% of all UVA, UVB up to 400nm and some of harmful blue light Optimal precision and impact resistance that meet or exceed ANSI Z80.3 optical and impact standards HDO Optics for crystal clear vision and impact resistance