Front picture of man using and stretching the white shirt collar extender
Package of the 2 units white shirt collar extender
Infographic of how to use the white SHIRT COLLAR EXTENDERS Cochic
video description of how to use a shirt collar extenders

Shirt Collar Extenders (2pcs, White Classic Chic)

Regular price$15 CAD
Shipping calculated at checkout.

The COCHIC® Collar Button Extenders are a uniquely patented accessory that will provide you with additional comfort while expanding the life of your shirts.

About our extenders:

  • STYLISH AND PRACTICAL: You don’t have to compromise style for comfort. Expand your shirt collar up to 1 1/2" (40 mm) so that you can breathe comfortably while staying chic. Available in many colours to match all your favourite shirts.
  • PREMIUM QUALITY: Our metal-free products have been tested for durability; they won’t rust or tarnish. Plus, there’s no risk of damaging your shirts or ties in the wash. Our soft elastic band keeps its form over time, providing maximum comfort.
  • SOPHISTICATED PACKAGING: Our collar extenders come in high-quality packaging offering a luxurious unboxing experience. The perfect gift for any sophisticated person!
  • ORIGINAL PATENT: COCHIC is the original collar extender owned by Gloria International Inc. Our innovative product is patent protected in Canada, the US, Europe, Japan, China, and Thailand.
  • SOCIALLY CONSCIOUS AND CANADIAN MADE: 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.
  • BLACK AND WHITE ELASTIC BANDS: Each set comes with 2 collar extenders: one with a white band, the other with a black band. Use the matching elastic colour to blend the extender with your shirt. 


This set includes:

  • 2 collar extenders (white)
  • Elastic button closure: extends up to 1 ½" (40 mm)
  • Button diameter: ⅜" (10.2 mm)
  • Made with resin
  • This product is utility patent protected worldwide
  • All extenders fit standard buttonholes 

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

You may also like

Customer Reviews

Based on 7 reviews
Kimball Brown

Thank you as I look forward to using them as I wear neck ties often.

The best collar extender I have ever used!

I am so happy with these fancy collar extenders I received from cochic. I used to own the metal cheap ones you can buy from amazon but they would always pinch my neck and also not go with the buttons on my dress shirt. Now not only does the collar extender look exactly like my shirts buttons but it doesn't pinch my skin at all. Shipping was also super quick! Two thumbs up!!

Fits perfectly!

Package came very quick and I love the look of my new collar extenders!

The perfect collar extender!!

I absolutely love my new collar extenders from Cochic!! I have had many problems in the past with cheap metal collar extenders pinching my neck and just not feeling good, but with these they not only look very nice with my white dress shirt buttons but they never pinch my skin! Thanks again!!

Best invention ever !

These extensors have excellent quality. I use them every day at work, I can't live without them anymore !