There is a review that claims that is the size is not correct they will work with you and not even require you to return the original. I can tell you this is a lie, not only is this not true they do not even offer you the option to return it for a larger size and instead point you to where you can buy another one and hope it fits. I think if this is policy they should remove the review that claims they have this level of support. Here is my response from them. You can see not even an return option.
Thanks for contacting Chums.
It sounds like you may need a larger size in our cotton retainer. If the one you have is not fitting, that means it is too small. I would check out our Large End Cotton retainer and see if one of these fits better!
Let me know if you have any other questions.
I will never put anything else on my sunglasses
I’ve used Chums Originals for years. The online order process was super simple and delivery was very quick. Nice job Chums.
I started using this very product in the mid 80s and have been using them ever since. They work and look great. Chums have gone everywhere that I have gone.