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Costa Del Mar

Costa Del Mar unisex-adult Costa C-line Adjustable Retainer

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Availability: In Stock.
Fulfilled by Amazon
Arrives Sunday, Mar 1
Order within 11 hours and 13 minutes
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Size: 20 Inch


Color: Black


Description

Never forget where your sunglasses are again with sunglass retainers from Costa Del Mar. Flexible and lightweight, these minimally designed retainers will ensure your frames stay exactly where you need them. Costa products sold by authorized sellers, like Amazon, are eligible for all manufacturer warranties and guarantees. Visit the Costa shop by clicking on the brand link above to shop the entire Costa assortment.

Package Dimensions ‏ : ‎ 8.15 x 1.34 x 0.51 inches; 0.18 ounces


Item model number ‏ : ‎ A6S0002KT


Department ‏ : ‎ unisex-adult


Date First Available ‏ : ‎ June 21, 2024


Manufacturer ‏ : ‎ Costa Del Mar


Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.:


Best Sellers Rank: #12,274 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #46 in Safety Eyewear Retainers


#46 in Safety Eyewear Retainers:


Customer Reviews: 4.6 4.6 out of 5 stars (2,558)


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Mar 1

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • These are great! They adjust quickly and easily and work very well and stay on tight and snug.
Size: 20 Inch Color: Silver/Costa Blue
These are great! They adjust quickly and easily and work very well and stay on tight and snug. I have a toddler who is constantly pulling and tugging on them and they get a PASS! Dad approved lol. The rubber and cable material they use is of good quality. Nothing has faded or broken or stretched or cracked or anything like that, had them about a year so far, so all good there. I recommend. ... show more
Reviewed in the United States on January 29, 2026 by Joe G.
    • Fantastic item
Size: 20 Inch Color: Black
Nice product I deeply recommend it Very easy to handle your glasses
Reviewed in the United States on December 18, 2025 by luis huaman
    • Perfect Fit and Durable – Keeps My Sunglasses Secure!
Size: 20 Inch Color: Black
I recently purchased the Costa C-Line Adjustable Retainer, and it’s been a fantastic addition to my sunglasses setup. The 20-inch length is perfect, offering just the right amount of slack to comfortably wear around my neck without it feeling too tight or too loose. The black color looks sleek and matches my sunglasses perfectly. What I really love is the adjustability – it's easy to customize the fit depending on how tight or loose you want it, and the retainer stays in place once adjusted. The material feels high-quality and durable, and I can tell it’s built to withstand outdoor conditions, whether I’m on the water, hiking, or just hanging out. The grip on the ends that hold the sunglasses in place is firm but gentle, ensuring my sunglasses stay secure without scratching them. It’s also lightweight, so it doesn’t weigh me down or cause discomfort. If you're looking for a reliable and stylish way to keep your Costa sunglasses secure, I highly recommend the C-Line Adjustable Retainer! It does exactly what it’s supposed to and looks great doing it. Definitely worth the purchase! ... show more
Reviewed in the United States on March 20, 2025 by Brandon
    • Great fit
Size: 20 Inch Color: Black
Love these, great fit
Reviewed in the United States on January 4, 2026 by Denise C.
    • Lasted almost a year
Size: 20 Inch Color: Black
The media could not be loaded. I really liked the adjustable strap and I could use it with my Dr. beats and a hat. Ultimately just short of a year it came apart where the tether inserts into the rubber receptacle. The glasses fell off my head and landed on the sidewalk flat. I don’t think my Warby Parker glasses got scratched but now the leash is ready for the garbage. No way to fix it. The strap really deserves ⭐️ ⭐️ ⭐️ 3 stars. But it did go through a troubled life (my daily abuse) but modest care was tempered. Anyhow., a sample of one isn’t enough for me to say don’t buy it, but you might have similar results. I paid about $13 so it’s not a deal breaker. ... show more
Reviewed in the United States on September 24, 2024 by M. Kasdin
    • A Must-Have for Sunglasses Lovers
I'm thoroughly impressed with the Costa Del Mar C-Line Adjustable Retainer Leash! As an outdoorsman and sunglasses enthusiast, I've lost count of how many pairs I've misplaced. This leash is durable, adjustable, and comfortable to wear. It's been a game-changer for me, keeping my sunglasses secure while fishing, hiking, or lounging by the pool. I highly recommend it to anyone who loves their sunglasses. It's a simple yet effective accessory that's worth every penny. ... show more
Reviewed in the United States on March 27, 2025 by jana swan
    • Love Costa
I love these they are the best ones they're modern looking they're secure I buy them all the time Costa is the best
Reviewed in the United States on February 2, 2026 by veronica yee
    • They work great
Size: 20 Inch Color: Black
Review Image by Paul Paul
They work great
Reviewed in the United States on February 15, 2026 by Paul Paul

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