---
product_id: 534817536
title: "Unisex Adult Bowline Silicone Retainer"
brand: "costa del mar"
price: "S$24"
currency: SGD
in_stock: true
reviews_count: 13
category: "Costa Del Mar"
url: https://www.desertcart.sg/products/534817536-unisex-adult-bowline-silicone-retainer
store_origin: SG
region: Singapore
---

# Durable, flexible silicone 19-inch adjustable length Sliding bead for custom tension Unisex Adult Bowline Silicone Retainer

**Brand:** costa del mar
**Price:** S$24
**Availability:** ✅ In Stock

## Summary

> 🕶️ Keep your shades locked in style—never miss a moment on or off the water!

## Quick Answers

- **What is this?** Unisex Adult Bowline Silicone Retainer by costa del mar
- **How much does it cost?** S$24 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/534817536-unisex-adult-bowline-silicone-retainer)

## 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

## Key Features

- • **Iconic Heritage:** From the pioneers of premium water-ready eyewear, celebrating 40 years of trusted performance.
- • **Secure Fit, Always:** Adjustable sliding bead ensures your sunglasses never slip, whether on land or water.
- • **Effortless Maintenance:** Easy to clean with warm soapy water to extend retainer lifespan and keep it fresh.
- • **Lightweight Durability:** Crafted from flexible silicone that withstands daily wear without weighing you down.
- • **Universal Compatibility:** Fits all Costa sunglasses and temple tip sizes from small to large for seamless integration.

## Overview

The Costa Del Mar Bowline Silicone Retainer is a 19-inch flexible, durable, and lightweight accessory designed to keep your sunglasses secure with an adjustable sliding bead. Compatible with all Costa sunglasses and temple sizes, it offers a sleek, minimal design born from 40 years of premium eyewear innovation, perfect for active professionals who demand reliability and style.

## 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 desertcart, 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.

Review: Very nice - Better quality than the sunglasses they sent me….
Review: For frames that have smaller profile temple tips, this retainer fits really snug. - If you've got large profile temple tips or have a flared out ear piece, then this retainer is not going to work for you. It is likely to split open whilst trying to snug them on the flare. For larger flared out temple tips, go with the 'Costa Del Mar unisex-adult C-line Retainer'. I recently acquired the Saint Laurent frame (SL 505), and it has low profile skinny temple tips. This bowline silicone retainer is perfect with a nice adjustable bead that slides up and down. If your bead slips off, you can get your handy Hemostat Forceps Locking Tweezers Clamps and pull the bead back through with no issues. Some things to keep in mind. if you produce a good bit of sebum or oil on your face and behind your ears, the silicon retainer will break down and disintegrate over time since your oily skin is acidic compared to the silicone rubber. To increase the lifespan of your retainers. wash your glasses and retainer regularly under warm soapy water, and pat dry with cotton fiber towl or some other means, etc. Whatever you use, it should not scratch up your lens or framesl

## Features

- Features: 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";
- The Costa C-Line Adjustable Retainer is compatible with all Costa sunglasses and fits small to large temple tips;
- Born on the water in 1983: Costa Sunglasses for men and women is celebrating 40 years of making the premium sunglasses on the planet and protecting the watery world we call home

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN  | B0D35LY87P |
| Best Sellers Rank | #39,479 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #104 in Safety Eyewear Retainers |
| Customer Reviews | 4.6 4.6 out of 5 stars (3,375) |
| Date First Available  | May 14, 2025 |
| Department  | womens |

## Images

![Unisex Adult Bowline Silicone Retainer - Image 1](https://m.media-amazon.com/images/I/41Y5Pkoi0-L.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Very nice
*by I***. on December 10, 2025*

Better quality than the sunglasses they sent me….

### ⭐⭐⭐⭐⭐ For frames that have smaller profile temple tips, this retainer fits really snug.
*by P***A on February 11, 2024*

If you've got large profile temple tips or have a flared out ear piece, then this retainer is not going to work for you. It is likely to split open whilst trying to snug them on the flare. For larger flared out temple tips, go with the 'Costa Del Mar unisex-adult C-line Retainer'. I recently acquired the Saint Laurent frame (SL 505), and it has low profile skinny temple tips. This bowline silicone retainer is perfect with a nice adjustable bead that slides up and down. If your bead slips off, you can get your handy Hemostat Forceps Locking Tweezers Clamps and pull the bead back through with no issues. Some things to keep in mind. if you produce a good bit of sebum or oil on your face and behind your ears, the silicon retainer will break down and disintegrate over time since your oily skin is acidic compared to the silicone rubber. To increase the lifespan of your retainers. wash your glasses and retainer regularly under warm soapy water, and pat dry with cotton fiber towl or some other means, etc. Whatever you use, it should not scratch up your lens or framesl

### ⭐⭐⭐⭐⭐ Great Product
*by S***S on September 23, 2025*

I have been using this for over 2 years and it is still working great. I highly recommend!

## Frequently Bought Together

- Costa Del Mar Unisex Adult Bowline Silicone Retainer
- Costa Del Mar Cleaning Kit, Costa Blue, 1 Fl Oz (Pack of 1)
- Costa Del Mar Men's Rincon Fishing and Watersports Rectangular Sunglasses

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**Shop now:** [https://www.desertcart.sg/products/534817536-unisex-adult-bowline-silicone-retainer](https://www.desertcart.sg/products/534817536-unisex-adult-bowline-silicone-retainer)

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-03-09*