Are these straps adjustable? I know that it says that thay are in the info, but some reviews say that they aren't.

No they're not adjustable. The ends attach to the sun glasses and the cord hangs behind your neck as it. Nothing to adjust.

What is the difference between C-line and C-mono?

It's the material the strap is made of, the mono is made of monofilament the c-line is a rubber coated material

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

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 ???

Hello, The strap from end to end is 20" EJ's

Costa Del Mar Unisex Adult C Line Retainer Leash Pack

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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$43.28

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Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🕶️ Keep your shades close, your style closer!

DURABLE SNAP CLOSURE - Secure your frames with a reliable snap that won’t let go
FEATHERLIGHT COMFORT - Ultra-thin coated wire ensures you barely notice it all day
SLEEK 20 INCH DESIGN - Perfect length to keep your sunglasses close without bulk
EFFORTLESS MAINTENANCE - Easy hand wash care keeps your retainer fresh and ready
UNIVERSAL COMPATIBILITY - Fits all Costa sunglasses seamlessly for effortless style

The Costa Del Mar C-Line Retainer Leash is a 20-inch ultrathin, lightweight silicone strap designed to securely hold all Costa sunglasses. Featuring a durable snap closure and minimalist design, it offers comfort and reliability on and off the water. Perfect for professionals who demand both function and sleek style, this retainer ensures you never lose your shades while maintaining a polished look.

Specifications

ASIN	B0058V584O
Age Range Description	adults
Best Sellers Rank	#475,100 in Fashion ( See Top 100 in Fashion ) #158 in Men's Eyeglass Chains & Lanyards
Brand Name	Costa Del Mar
Care instructions	Hand wash with cold water. Do not bleach. Lay out in the open air and away from heat.
Closure type	Snap
Color	Black
Compatible Devices	All Costa sunglasses
Customer Reviews	4.6 out of 5 stars 7,796 Reviews
Fastener Type	Snap
Garment Size Country	United Arab Emirates
Global Trade Identification Number	00097963476874
Included Components	cloth
Item Type Name	Leash
Item Weight	0.02 Pounds
Manufacturer	Pro-Motion Distributing - Direct
Manufacturer Part Number	CE-11
Material Type	Metal
Material composition	100% Silicone
Outer material	Silicone
Pattern	Solid
Size	20 Inch
Style Name	Classic
Style Number	A6S0003KT
UPC	097963663892 799475042683 097963476874
Unit Count	1 Count

Reviews

R**S

Five Stars

great product

21.07.2017

S**S

Great fit and built to last

My son loves these sunglasses. They fit well, feel durable, and hold up to everyday wear. Costa Del Mar never disappoints on quality and these are no exception. Would definitely recommend.

2.06.2026

B**L

Excellent product however slightly fragile

Slightly fragile but so easy and discreet to use

20.10.2019

N**.

Muy buen producto este retenedor!

Muy buen producto, calidad en los materiales!

9.03.2026

H**E

Looks good & simple.

Easily clings, extends & shortens easily too.

20.10.2025

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