Spy Logan Sunglasses - Brown Stripe Tortoise / Bronze

What is Propionate? It's a soft, flexible material that allows for a sleek, dense finish creating a modern, comfortable, durable frame. For the Organic Chemists out there, it's C2H5COO- (we think).

What is an 8-Base lens? A lens' Base refers to the amount of arc in the lens and therefore the arc in the frame. A 6-Base is a more flat, square shape creating a more scholarly look. A larger base like a 9-Base is more wrapped and therefore will appear more suited for active endeavors.

What is an ARC lens? In short, it's Spy's optically correct distortion free lens. ARC stands for Accurate Radius Curvature. The lenses become thinner as they move away from the optical center of the lenses thereby eliminating any distortion.

Any warranty? Yep. Spy provides a one year warranty from the date of purchase to replace any product or portion thereof which is deemed a manufacturer's defect.