Unfortunately be aware that there are 2 types of cheap replacements, some are identical to the real thing and some are really cheap foam that is nowhere as comfortable. I don’t know how to tell the difference without ordering…

My broken QuietComfort headphones with the plastic earcup hinges would like to have a word…

I love my Bose headphones but man, don’t ever dare dropping them on the floor by mistake, they will shatter on the first hit.

To be fair in the past when this happened you could bring the broken pair in store to get a replacement or upgrade at a good price, but I hear the policy was abused too much so it was retired many years ago.