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

Unisex Adult C Line Retainer Leash Pack Of 1

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Description

🕶️ Never lose your style—keep your shades locked in place with Costa’s sleek retainer!

FEATHERLIGHT COMFORT - At just 8 grams, it’s barely there but always reliable.
SLEEK MINIMALIST DESIGN - Ultrathin coated wire with signature logo bead for subtle sophistication.
UNIVERSAL COMPATIBILITY - Works seamlessly with all Costa sunglasses—style meets function.
TRUSTED QUALITY WARRANTY - Authorized seller guarantee ensures peace of mind with every wear.
EFFORTLESS SUNGLASS SECURITY - Keep your frames exactly where you want—no slips, no drops.

The Costa C-Line Retainer Leash is a 20-inch ultrathin, lightweight (8g) coated wire leash designed to securely hold all Costa sunglasses. Featuring a snap fastener and a minimalist logo bead, it combines durability with subtle style. Perfect for active professionals who demand both function and fashion, it comes with manufacturer warranties when purchased from authorized sellers.

Specifications

ASIN	B0058V584O
ASIN	B0G18B8PWP
Age Range Description	adults
Best Sellers Rank	#436,712 in Fashion ( See Top 100 in Fashion ) #124 in Men's Eyeglass Chains & Lanyards
Brand Name	Costa Del Mar
Color	Black
Customer Reviews	4.7 4.7 out of 5 stars (7,739)
Customer reviews	4.7 4.7 out of 5 stars (7,739)
Date First Available	20 December 2019
Department	unisex-adult
Fastener Type	Snap
Garment Size Country	United Arab Emirates
Global Trade Identification Number	00097963476874
Included Components	cloth
Item Type Name	Leash
Item Weight	8 g
Item model number	A6S0003KT
Manufacturer	Pro-Motion Distributing - Direct
Manufacturer	Pro-Motion Distributing - Direct
Manufacturer Part Number	CE-11
Material Type	Metal
Package Dimensions	25.4 x 25.4 x 2.54 cm; 425.24 g
Pattern	Solid
Size	20 Inch
Style Name	Classic
Style Number	A6S0003KT
UPC	097963663892 799475042683 097963476874
Unit Count	1 Count

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€ 49.52

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Croatia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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unisex-adult C-line Retainer Leash (pack of 1)

Description

Specifications

Common Questions