Optic Nerve Contra Casual Sunglasses - Matte Tortoise/Brown - The Contra is built with simple organic lines and features wider temples to produce an instant classic that outdoorsmen and women both love. Designed with comfort and durability in mind - the Contra provides a comfortable fit and coverage for a wide range of face shapes and sizes. Features: UV Rating: 100% UVA/UVB Protection; Lens Type: Polarized; Design: Active Sports; Warranty: Lifetime; Frame: Durable, Lightweight;