---
product_id: 297343969
title: "Costa Del Mar C-Line Retainer - Black"
brand: "costa del mar"
price: "€ 38.48"
currency: EUR
in_stock: true
reviews_count: 5
category: "Costa Del Mar"
url: https://www.desertcart.fr/products/297343969-costa-del-mar-c-line-retainer-black
store_origin: FR
region: France
---

# Costa Del Mar C-Line Retainer - Black

**Brand:** costa del mar
**Price:** € 38.48
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Costa Del Mar C-Line Retainer - Black by costa del mar
- **How much does it cost?** € 38.48 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/297343969-costa-del-mar-c-line-retainer-black)

## Best For

- costa del mar enthusiasts

## Why This Product

- Trusted costa del mar brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

Product Description

Review: Muy buen producto este retenedor! - Muy buen producto, calidad en los materiales!
Review: Looks good & simple. - Easily clings, extends & shortens easily too.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0058V584O |
| Age Range Description | All Ages |
| Brand Name | Costa Del Mar |
| Colour | Black |
| Customer Reviews | 4.6 out of 5 stars 6,108 Reviews |
| Fastener Type | clasp |
| Global Trade Identification Number | 00097963476874 |
| Item Weight | 8 g |
| Manufacturer Part Number | CE-11 |
| Pattern | Solid |
| Style Name | Silver |
| Style Number | A6S0003KT |
| UPC | 097963663892 799475042683 097963476874 |

## Images

![Costa Del Mar C-Line Retainer - Black - Image 1](https://m.media-amazon.com/images/I/41CHtb--o8L.jpg)

## Questions & Answers

**Q: Are these straps adjustable? I know that it says that thay are in the info, but some reviews say that they aren't.**
A: No they're not adjustable. The ends attach to the sun glasses and the cord hangs behind your neck as it. Nothing to adjust.

**Q: What is the difference between C-line and C-mono?**
A: It's the material the strap is made of, the mono is made of monofilament the c-line is a rubber coated material

**Q: How long are they?**
A: Hi Marie,The retainer is about 18 inches long.  It is much shorter than most retainers, it is made to fit closely as some people don't like their sunglasses to hang too low.  Please keep in mind that the strap has a breakaway feature to prevent strangulation, much like a cat collar therefore has no warranty privileges.  It is an awesome super light weight strap and honestly most people love them, just beware not to yank on the glasses or you will snap off the end.I hope this was helpfulEJ's SunglassesAuthorized Costa del Mar dealer

**Q: This add is deceiving, picture in add indicates 16" length,  after placing in cart, item then lists as 13" ultra thin retainer? Need 16" or longer ???**
A: Hello,
The strap from end to end is 20" 
EJ's

## Customer Reviews

### ⭐⭐⭐⭐⭐ Muy buen producto este retenedor!
*by N***. on 9 March 2026*

Muy buen producto, calidad en los materiales!

### ⭐⭐⭐⭐ Looks good & simple.
*by H***E on 20 October 2025*

Easily clings, extends & shortens easily too.

### ⭐⭐⭐⭐⭐ El cordón Costa para lentes tiene muy buena calidad y se siente resistente desde el primer uso.
*by N***S on 20 May 2026*

Jenial

## Frequently Bought Together

- Costa Del Mar BODY_STRAP Costa C-Line Retainer, Black, 20in
- Costa Del Mar Unisex Adult Bowline Silicone Retainer
- Costa Del Mar unisex-adult Fathom Cord

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**Shop now:** [https://www.desertcart.fr/products/297343969-costa-del-mar-c-line-retainer-black](https://www.desertcart.fr/products/297343969-costa-del-mar-c-line-retainer-black)

---

*Product available on Desertcart France*
*Store origin: FR*
*Last updated: 2026-06-01*