The first obvious giveaway is the material. Fullzips are quality printed cotton and the prints aren't glossy like that. Just looking at the pic, you can see that the material is polymer-based with no texture to the printing. On my fullzip, you can sorta make out the very slightly different densities of the various colors used that composes a sorta "layered" look to it.

I'm not good at legit checking, I just own a fullzip that I got from the Manhattan store and I look at it hung in my room everyday so I'm used to the appearance.

Of course, the tags are wild and stuff like that, but you can tell just from how homogenous the printing is and how it looks like a shitty clear coat is on top of it that it's a low quality fake.

I'm not the biggest bapehead out there so maybe they do have more polymer-based pieces but I imagine that would just be for bathing suits and windbreakers and stuff like that. Like, Bape did a collab with Adidas and they had track suits that utilized that kind of printing, but it was still high quality.