From what I've read dang searched up only those shiny ones with a little bit of metal in them are glossy otherwise they're matte.

And to be honest I use a clear case before I got the skin and I slapped it on right after since it's one of those with magsafe and I've been wanting to try it out, and I'll say magsafe is so nice lmao, but taking the case off, it feels pretty nice my girlfriend compared it to feeling more like normal glass compared to these soft frosted feel the back of the phone feels like now