Top 10 Best Retainer For Costa Tuna Alley [2025]

In this article we've included our suggestions for the after analyzing 57018 reviews.
NoProductScoreAction
1Costa Del Mar Unisex-Adult C-Mono Retainer Leash9.4Buy On Amazon
2Costa Del Mar Keeper Cord9.4Buy On Amazon
3Costa Del Mar Unisex-Adult Costa Fathom Cord Leash9.4Buy On Amazon
4Costa Del Mar Unisex-Adult Costa-C-Mono Gripper Leash9.4Buy On Amazon
5Costa Del Mar C-Line Adjustable Retainer Leash9.2Buy On Amazon
6Costa Del Mar Unisex-Adult Costa C-Line Retainer Leash9Buy On Amazon
7Costa Del Mar Costa Bowline Silicone Retainer Leash8.8Buy On Amazon
8Costa Del Mar Men's Tuna Alley Polarized Rectangular Sunglasses8.6Buy On Amazon
9Costa Del Mar Men's Blackfin Pro Polarized Rectangular Sunglasses8.6Buy On Amazon
10Costa Del Mar Unisex-Adult Costa Gripper Leash8.4Buy On Amazon
Disclaimer: As An Amazon Associate I Earn From Qualifying Purchases.

1. Costa Del Mar Unisex-Adult C-Mono Retainer Leash

  • COSTA C-MONO RETAINER: The Costa C-Mono retainer is a high tenacity monofilament retainer with logo bead.
  • From end-to-end, the Costa C-Mono Retainer measures 20″.
  • The Costa C-Mono Retainer is compatible with all Costa sunglasses.
  • VISIT THE COSTA BRAND SHOP: Click on the Costa logo above to view the entire Costa sunglasses and accessories assortment.

2. Costa Del Mar Keeper Cord

  • COSTA KEEPER: The Costa Keeper is an upcycled cotton keeper with adjustable bead and Costa woven label.
  • From end-to-end, the Costa Keeper measures 20″.
  • The Costa Keeper is compatible with all Costa sunglasses.
  • VISIT THE COSTA BRAND SHOP: Click on the Costa logo above to view the entire Costa sunglasses and accessories assortment.

3. Costa Del Mar Unisex-Adult Costa Fathom Cord Leash

  • COSTA FATHOM CORD: The Costa Fathom cord is a Marine grade, soft nylon cord retainer with adjustable logo bead and slip fit attachments to ensure your sunglasses stay put, on and off the water.
  • From end-to-end, the Costa Fathom Cord measures 28″.
  • The CostaFathom Cord is designed to fit most styles with co-injected temples.
  • VISIT THE COSTA BRAND SHOP: Click on the Costa logo above to view the entire Costa sunglasses and accessories assortment.

4. Costa Del Mar Unisex-Adult Costa-C-Mono Gripper Leash

  • COSTA C-MONO GRIPPER: The Costa C-Mono gripper is a high tenacity monofilament retainer with logo bead.
  • From end-to-end, the Costa C-Mono Gripper measures 18″.
  • The Costa C-Mono Gripper fits Cat Cay, Mag Bay, and Cut frames.
  • VISIT THE COSTA BRAND SHOP: Click on the Costa logo above to view the entire Costa sunglasses and accessories assortment.

5. Costa Del Mar C-Line Adjustable Retainer Leash

  • COSTA C-LINE ADJUSTABLE RETAINER: The Costa C-Line adjustable retainer features ultrathin, lightweight coated wire with adjustable bead sliders to make sure your sunglasses stay put, on and off the water.
  • From end-to-end, the Costa C-Line Adjustable Retainer measures 20″.
  • The Costa C-Line Adjustable Retainer is compatible with all Costa sunglasses.
  • VISIT THE COSTA BRAND SHOP: Click on the Costa logo above to view the entire Costa sunglasses and accessories assortment.

6. Costa Del Mar Unisex-Adult Costa C-Line Retainer Leash

  • COSTA C-LINE RETAINER: The Costa C-Line retainer features ultrathin, lightweight coated wire with logo bead to make sure your sunglasses stay put, on and off the water.
  • From end-to-end, the Costa C-Line Retainer measures 20″.
  • The Costa C-Line Adjustable Retainer is compatible with all Costa sunglasses.
  • VISIT THE COSTA BRAND SHOP: Click on the Costa logo above to view the entire Costa sunglasses and accessories assortment.

7. Costa Del Mar Costa Bowline Silicone Retainer Leash

  • COSTA SILICONE RETAINER: Flexible, durable and lightweight, the Costa Bowline retainer is a streamlined silicone retainer with sliding bead for adjustable tension to make sure your sunglasses stay put, on and off the water.
  • From end-to-end, the Costa Bowline Silicone Retainer measures 19″.
  • COMPATIBLE WITH: Oakley OO9144 Half Jacket 2 sunglasses.
  • VISIT THE COSTA BRAND SHOP: Click on the Costa logo above to view the entire Costa sunglasses and accessories assortment.

8. Costa Del Mar Men’s Tuna Alley Polarized Rectangular Sunglasses

  • Costa’s most high tech lens – 580 Glass provides superior clarity, scratch-proof, 100% UV protection and the best polarizing efficiency available.
  • Blue Mirror Polarized is best for bright, full-sun situations on the open water and offshore.
  • Costa’s co-injected bio-based nylon frame material is both tough and durable, while offering a comfortable fit.
  • 100% polarization kills reflected glare and reduces eye strain. Lens Width: 61.8mm

9. Costa Del Mar Men’s Blackfin Pro Polarized Rectangular Sunglasses

  • 100% UV PROTECTION: All Costa Del Mar Eyewear lenses block potentially harmful high-energy visible blue light rays and protect against 100% of Ultraviolet rays (up to 400nm).
  • COSTA POLARIZED 580 LENSES: Costa’s patented 580 lenses go further then normal polarized lenses by blocking the perfect amount of harsh yellow light and potentially harmful blue light while enhancing beneficial reds, blues and greens.
  • COSTA GREY LENSES: Costa’s Grey lenses are the perfect everyday base for the harshest sun conditions.
  • PRO TECHNOLOGY: The new Costa PRO series includes six new features to keep you out on the water longer – eyewire drains, sweat management channels, adjustable vented nose pads, metal keeper slots, sun hooding and sideshields and frames made with Hydrolite for a secure fit no matter the activity.

10. Costa Del Mar Unisex-Adult Costa Gripper Leash

  • COSTA GRIPPER: The Costa gripper is a braided nylon cord retainer with logo bead.
  • From end-to-end, the Costa C-Mono Gripper measures 35″.
  • The Costa Gripper is compatible with all Costa sunglasses.
  • VISIT THE COSTA BRAND SHOP: Click on the Costa logo above to view the entire Costa sunglasses and accessories assortment.