Costa C-Mates Reading Glasses – Tuna Alley





Costa Reading Sunglasses Tuna-Alley is the perfect combination of polarized sunglasses and bifocal readers, the Tuna Alley comes from the C-Mates collection by Costa. The full-rim frames are made from bio-based nylon, an eco-friendly plant-based resin that’s lightweight, durable, and holds its shape in extreme conditions. The integral hinges are durable. Temple tips are curved inward with added grip on the interior for a secure fit. The patented vented system in these bold frames allows cooling airflow to reduce fogging. Adorned with the Costa C at the temple, these Tuna Alley bifocal glasses make a sporty option for the active wearer.

Get the benefit of readers and sunglasses all in one. Equipped with our patented C-Mate technology, these Costa Fisch reader sunglasses are the perfect balance of performance and function, whether it’s spotting a fish, tying a hook or reading a map. Without any visible line separating the bifocal area, these performance fishing men’s reader sunglasses make for a seamless day spent discovering a new stretch of water, casting and getting one on the line. With three power ranges of +2.50, +2.00 and +1.50, we have the perfect pair for any taste.

The Costa reading glasses collection feature lightweight but durable frames for people who prefer to experience life rather than watch from the sidelines. These rugged styles are inspired by active lifestyles, made to stand up to all your adventures.

Whether you’re looking to enhance your reading skills or simply get rid of those annoying headaches from reading, you’re sure to find the right reading glasses for your needs.

If you’re unsure what reader strength you need, we offer a printable guide to help determine what strength to purchase. All directions listed on the guide must be followed to get the best read on your reading strength.


If you currently own a pair of readers but think you might need a higher strength, we recommend trying the adjacent strengths. For example, if your current power is +2.00, we recommend trying a +2.25. If you can’t remember what power your current readers are, you can find the reader strength stamped on the inside of the temple.

View our Full Collection of Costa Prescription Eyeglasses

When you have completed shopping for your Costa prescription eyeglasses, please make sure you check our our fine collection of Costa Polarized sunglasses.

Additional information



Frame Color

Tortoise, Matte Black

Frame Size


Frame Features

Acetate Frame

Frame Materials


Frame Style

Rectangle, Square

Group Type/Gender

Men, Unisex, Women

Product Type

Readers, Sunglasses


Extra Large, Large

Eye Size



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