Liberare is a brand that makes disability-friendly clothes that are meant to be easily worn with a variety of disabilities and tested by disabled people with limited dexterity, paraplegia, missing one arm, etc
Here is an example of a few of their bras that is what they're most known for:
Recently, she was asked to make a chest binder for the same purpose. She's really excited to, but wants to know what people would want in this kind of binder. She is testing them with trans people, and has already come up with a simple design that will have similar if not the same closure as the bras.
Right now she just wants input from people that you can give on this survey. It took me about a minute or two to answer, and it asks about what kind of compression you want, fabric, why you would want to use it, (even if it's just because binders are difficult to put on and you're not disabled) and a section to add any additional thoughts or suggestions you have at the end.
If anyone has a spare minute, it would be really great to help so we can get this designed and made.