@reu take it easy there friend. I think you are correct in saying that most of the times gender bender tag are mostly associated with physical sex characteristics instead of internal gender identity.
However it is rather easy to understand why quite a lot of trans folks are enjoying these type...
@MonsieurQuack and @yuu-oniichan @CRealights thank you all for the replies. I will widen my search for a bit. Last time I asked about these in glasses store, people were looking at me weird. I guess these type of style just a bit foreign where I am at.
I have to ask, as someone lives in North America I could never find these type of frames where the top of of the glasses are free of any type of metal rims. When I asked, I was told that structurally speaking it wouldn't work too well. Has anyone ever own glasses like those?