All right, here's another attempt to make myself more clear.

What does "non-binary" mean when a person uses the word
to describe lifestyle/sexuality choices?
Eliza/Senoufou seems to understand the word AND my confusion.

Also unclear was that I was quoting an online review.
The shopper/consumer found a supportive undergarment
that did the function it was supposed to do
without looking like ladies' lingerie.

Thanks everyone.