--- product_id: 735754300 title: "Costa Del Mar C-Mono Retainer" brand: "costa del mar" price: "€ 42.33" currency: EUR in_stock: true reviews_count: 5 category: "Costa Del Mar" url: https://www.desertcart.es/products/735754300-costa-del-mar-c-mono-retainer store_origin: ES region: Spain --- # flat, low-profile temple attachments 20-inch high-tenacity monofilament ultra-lightweight at 0.01 oz Costa Del Mar C-Mono Retainer **Brand:** costa del mar **Price:** € 42.33 **Availability:** ✅ In Stock ## Summary > 🕶️ Keep your shades secure, stylish, and ready for every adventure! ## Quick Answers - **What is this?** Costa Del Mar C-Mono Retainer by costa del mar - **How much does it cost?** € 42.33 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/735754300-costa-del-mar-c-mono-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 - • **Vibrant & Visible:** Striking blue color adds a pop of personality while keeping your shades safe - • **Featherlight Comfort:** Ultra-lightweight design ensures you barely notice it while on the move - • **Unmatched Durability:** Crafted from high-tenacity monofilament for all-day strength and reliability - • **Sleek Low-Profile Fit:** Flat temple attachments keep your look sharp and sunglasses secure - • **Universal Compatibility:** Seamlessly pairs with all Costa sunglasses for effortless style ## Overview The Costa Del Mar C-Mono Retainer is a 20-inch, ultra-lightweight eyewear leash made from high-tenacity monofilament with flat, low-profile temple attachments. Designed to keep your Costa sunglasses secure on and off the water, it combines durability with sleek style and universal compatibility, backed by over 2,300 positive reviews. ## Description Costa C-Mono??? Retainer. High tenacity monofilament. Sleek and ultra lightweight. Flat, low profile temple attachments. Review: Excelente - Excelente calidad y el color muy vivo. Se ajustó bien a mis lentes Review: Happy - Very happy with the product… Doing its job! ## Features - COSTA C-MONO RETAINER: The Costa C-Mono retainer is a high tenacity monofilament retainer with logo bead. The sleek and ultra-lightweight, flat, low-profile temple attachments ensure your sunglasses stay put, on and off the water. - 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. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00HRHCH64 | | Brand Name | Costa Del Mar | | Colour | blue | | Customer Reviews | 4.5 out of 5 stars 2,354 Reviews | | Fastener Type | J Hook | | Global Trade Identification Number | 00097963510356 | | Included Components | retainers | | Item Dimensions | 25.4 x 20.3 x 7.6 Centimeters | | Item Type Name | Leash | | Item Weight | 0.01 Ounces | | Manufacturer | Pro-Motion Distributing - Direct | | Manufacturer Part Number | CM46 | | Material Type | Silicone | | Pattern | Solid | | Size | 20 Inch | | Style Name | C-mono Retainer | | Style Number | A6S0007KT | | UPC | 097963510356 | ## Images ![Costa Del Mar C-Mono Retainer - Image 1](https://m.media-amazon.com/images/I/61Md5WDmZ6L.jpg) ## Available Options This product comes in different **Lens Width, Color** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Excelente *by I***. on 3 December 2025* Excelente calidad y el color muy vivo. Se ajustó bien a mis lentes ### ⭐⭐⭐⭐⭐ Happy *by B***J on 23 November 2021* Very happy with the product… Doing its job! ### ⭐⭐⭐⭐⭐ Great Product for Your Glasses *by B***C on 4 August 2016* I purchased this and Costa Del Mar Nylon Keeper Cord, Blue for a new pair of sunglasses. I was planning on returning one when I evaluated both. Instead, I'm keeping both. There are different positives and negatives for both styles of sunglasses straps. **C-Mono Retainer** Positives: Waterproof Durable Retains its shape (doesn't droop or contort) Holds onto sunglass arms very well Stylish Negatives: Retains its shape (tough to put a pair of sunglasses with a c-mono on it into the sunglass case Retains its shape (the wire will stick out the back a little so it might bother some people) It's made of metal (metal wire may be a turn-off for some people) **Nylon Keeper Cord** Positives: Holds onto sunglasses well Can tighten the loop if necessary (hold sunglasses on your face) Soft cord that hangs down (nylon vs metal) Stylish design Negatives: Not waterproof so it will get wet and soggy in water Hangs down close to the collar so it might bother some people Likely not as durable as the c-line retainer FIT: Both styles of holders seem to have the same size opening that holds onto the sunglasses. I tested them out with three different pairs of sunglasses and each one was easily attached. I'd estimate this will fit medium/normal to slightly bigger arms but overly large arms probably need an XL opening (see Croakies or Cablz for other top brands). Highly recommend both the nylon keeper cords and these c-mono retainers. ## Frequently Bought Together - Costa Del Mar unisex-adult Costa C-mono Retainer Leash (pack of 1) - Costa Del Mar unisex-adult Costa Bowline Silicone Retainer Leash (pack of 1) - Pilotfish No Tail Adjustable Eyewear Retainer Cable Strap: Sunglasses, Eyeglasses, Glasses --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.es/products/735754300-costa-del-mar-c-mono-retainer](https://www.desertcart.es/products/735754300-costa-del-mar-c-mono-retainer) --- *Product available on Desertcart Spain* *Store origin: ES* *Last updated: 2026-07-14*