| Description | Signal Sunglasses - dark tortoiseshell 
 
 Where style and function finally collaborate, Signal sunglasses will help you relax in comfort at a sunny afternoon BBQ, as well as protect your eyes from the dirt when you're riding the canal cycle path to work in the morning. Featuring performance oriented polycarbonate lenses, you get great optical clarity along with full UVA and UVB protection
 
 Features: Polycarbonate Lenses: Optics from Madison meets the highest standard for eyewear; ISO 12312. The interchangeable polycarbonate lenses are both impact and scratch-resistant. The lenses offer both supreme optical clarity and UV-A and UV-B protectionMulti-Purpose: Both versatile and stylish, Madison Optics maintain their good looks on the road or trailsTR-90 Frames: TR-90 plastics are lightweight, flexible and durable. TR-90 plastic memory allows them to flex and return to their original shape without breaking or bendingSecure Fit: Our frames work seamlessly with your helmet with non-slip rubber tips for maximum comfort and security. The flexible nose-piece allows you to dial in the perfect fit, adjusting for extra venting if desiredPrescription: Can you see clearly when you're riding? Clip in our compatible RX insert behind the lens to deliver full prescription vision and improve the detail of every rideStorage: All our sunglasses come with a zip-up hard case to keep them safe when not on your face and to store spare lenses and the soft cleaning clothSize Spec: Lens Width: 63mm, Lens Height: 41mm, Frame Width: 140mm, Bridge Height: 10mm, Arm Length: 122mmLimited Lifetime Warranty: At Madison, we pride ourselves on offering an excellent product with aftercare to match. That's why this product is covered by our Limited Lifetime Warranty
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