One size does not fit all.
I’m 4’11” and the brace my surgeon’s office and the brace the hospital provided were both too tall and were causing pressure ulcers and bruising. I did some measuring of my neck and some research and found that the Miamij super short is the brace I should be using. I ordered it through Brace Direct at a reasonable price and it arrived a few days later, on time, and fits soooo much better than the other 2 collars I was given. I’m very happy with Brace Direct.