--- product_id: 75573146 title: "Collar Extenders for Mens Shirts - Button Extender - Dress Shirt Neck Extender for Men 2-Pack Elastic Collar Support" brand: "cochic" price: "¥4761" currency: JPY in_stock: true reviews_count: 13 category: "Cochic" url: https://www.desertcart.jp/products/75573146-collar-extenders-for-mens-shirts-button-extender-dress-shirt-neck store_origin: JP region: Japan --- # patent-protected secure fit 2-pack durable Italian elastic machine washable & reusable Collar Extenders for Mens Shirts - Button Extender - Dress Shirt Neck Extender for Men 2-Pack Elastic Collar Support **Brand:** cochic **Price:** ¥4761 **Availability:** ✅ In Stock ## Summary > 👔 Upgrade your collar game—comfort, style, and fit in one smart extender! ## Quick Answers - **What is this?** Collar Extenders for Mens Shirts - Button Extender - Dress Shirt Neck Extender for Men 2-Pack Elastic Collar Support by cochic - **How much does it cost?** ¥4761 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/75573146-collar-extenders-for-mens-shirts-button-extender-dress-shirt-neck) ## Best For - cochic enthusiasts ## Why This Product - Trusted cochic brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Invisible Elegance:** Seamlessly blends with your shirt’s design—no bulky metal, just a natural button look for professional polish. - • **Comfort Meets Style:** Soft elastic material eliminates pinching and discomfort common with metal extenders, perfect for all-day wear. - • **Ethical & Certified:** Proudly crafted by a Women-Owned business with fair practices, supporting community well-being and quality craftsmanship. - • **Universal Fit Upgrade:** Easily add extra collar space to tight shirts, ideal for fluctuating neck sizes or those hard-to-find larger collars. - • **Extend Your Shirt’s Life:** Save money and avoid wardrobe waste by upgrading your existing dress shirts with a sleek collar extender. ## Overview COCHIC Collar Extenders for Men’s Shirts are a patented, elastic button extender set designed to increase collar size comfortably and discreetly. Made from high-quality Italian materials, these 2-pack extenders blend seamlessly with dress shirts, providing a polished look without pinching. Machine washable and ethically produced by a certified Women-Owned business, they offer a smart, sustainable solution to tight collars and fluctuating neck sizes. ## Description COCHIC shirt collar button extender is the perfect accessory for men and women looking to make sure their shirt fits properly. You can extend your shirt collar so it can cover your tie and stay buttoned up, giving you a professional and polished look whether you are dressed formal for a presentation, smart for a job interview, sexy for a date or special occasion. This accessory will help you look your best. These patented elastic button collar expanders bring just the right amount of comfort when you need it most. Feel comfortable and stylish! dress shirt collar inserts,magnetic collar stays for men,shirt collar inserts,collar extenders for mens dress shirts,collar stays for men,dress shirt button extender,mens collar stays,neck extender for dress shirt,shirt button extender mens,mens shirt collar extender,collar extension,shirt extender for men,neck collar extenders for mens shirts Review: Increase the collar size and life of your favorite dress shirts - These Collar extenders work great. I have a bunch of dress shirts size 32/33 with 17 inch necks. The shirts fit great the only problem is that my neck is no longer 17 inches, it is probably closer to 18. I had a job interview coming up and needed to find a way to wear one of my existing shirts. Finding shirts in a 32/33 with 18 inch neck is almost impossible and did not make sense since the shirts I own are in great condition. I took a chance on these and am so glad I did. I attached one to my top button, put the shirt on, buttoned the collar and put on my tie. perfect fit and you could not tell i was wearing a extender. Review: Excellent product! - I bought an elegant fit dress shirt for my father and wanted to make sure he could wear it with a tie without feeling tight at the collar. This elegant collar extender did a perfect job! I didn't know he already had a collar extender but I was told that the collar extender he had was pinching his Adam's apple and couldn't use it at all, while this new one gives him a real confort and is very elegant. My gift was very much appreciated. I recommend it! ## Features - Save money and give your clothes a second chance! Our neck button extender allow you to extend the life of your tight-fitting shirts. Upgrade your shirt's fit with collar extenders for mens shirts - Stay stylish with collar button extender for dress shirts that blend seamlessly with your shirt's design. Unlike metal extenders, our buttons look like just another button on your white shirt - Crafted from high-quality Italian materials, our neck tie collar extender has long-lasting durability. Breath easily with extra space in your collar area and keep your black shirt elegant - Other extenders use metal springs that can pinch you, shirt collar extenders for men use a soft elastic that is effortless to attach. Patent protected in Canada, US, Japan, Europe and other countries - We take pride in the well-being of our employees and helping local communities with our fair business practices. COCHIC is a certified Women Owned business ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00OI2AHZ4 | | Age Range Description | Adult | | Best Sellers Rank | #1,119,211 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #157 in Men's Collar Stays | | Brand Name | COCHIC | | Care instructions | Machine Wash | | Closure Type | Button Extender | | Color | Black | | Customer Reviews | 4.4 out of 5 stars 232 Reviews | | Fabric Type | Elastic | | Fabric type | Elastic | | Fit Type | Slim | | Import Designation | Made in the USA or Imported | | Manufacturer | COCHIC | | Material | Acrylic | | Number of Items | 2 | | Occasion | Work | | Origin | Made in the USA or Imported | | Part Number | 181520000 | | Pattern | Solid | | Product Care Instructions | Machine Wash | | Size | Large | | Style | Button Closure | | Style Number | GRIS | | UPC | 181520000159 | | Unit Count | 1 Count | | Warranty Description | 365d | ## Images ![Collar Extenders for Mens Shirts - Button Extender - Dress Shirt Neck Extender for Men 2-Pack Elastic Collar Support - Image 1](https://m.media-amazon.com/images/I/21djTr5+kKL.jpg) ## Available Options This product comes in different **Color** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Increase the collar size and life of your favorite dress shirts *by J***K on February 15, 2015* These Collar extenders work great. I have a bunch of dress shirts size 32/33 with 17 inch necks. The shirts fit great the only problem is that my neck is no longer 17 inches, it is probably closer to 18. I had a job interview coming up and needed to find a way to wear one of my existing shirts. Finding shirts in a 32/33 with 18 inch neck is almost impossible and did not make sense since the shirts I own are in great condition. I took a chance on these and am so glad I did. I attached one to my top button, put the shirt on, buttoned the collar and put on my tie. perfect fit and you could not tell i was wearing a extender. ### ⭐⭐⭐⭐⭐ Excellent product! *by M***I on May 3, 2014* I bought an elegant fit dress shirt for my father and wanted to make sure he could wear it with a tie without feeling tight at the collar. This elegant collar extender did a perfect job! I didn't know he already had a collar extender but I was told that the collar extender he had was pinching his Adam's apple and couldn't use it at all, while this new one gives him a real confort and is very elegant. My gift was very much appreciated. I recommend it! ### ⭐⭐⭐⭐⭐ I do like them and they seem like quality items after a ... *by J***R on September 25, 2015* I do like them and they seem like quality items after a week of use, however, at $15 they are pricey for 2 buttons, one of which I've lost already. Not a product defect, rather user error. I'd buy again if they were less expensive. --- ## 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.jp/products/75573146-collar-extenders-for-mens-shirts-button-extender-dress-shirt-neck](https://www.desertcart.jp/products/75573146-collar-extenders-for-mens-shirts-button-extender-dress-shirt-neck) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-09-29*