They look like my Vue glasses
I backed them on kickstarter, they looked fun and were cheap (especially as they came with a prescription, much cheaper than my actual glasses).
However, whether it's my larger than average head, narrow pupillary distance or poor design they're physically painful to wear. I'm not sure if it's the pressure of the things constantly digging in to my head or the bone conducting vibrations whilst listening to music also shaking the lenses ever so slightly but wearing a pair for an hour makes me feel sea sick.
Call quality was terrible too.
So, all in, they sit in there fancy charging case, in a closet somewhere (I think..haven't seen them since the last move)..
Imagine the Amazon's will suffer similarly so not rushing out for an invite..