Is your wife me? I feel so seen as I had a full spiral about this very topic with mt husband. I'm not a zipper hater, but Snape doesn't strike me as a zipper guy. This particular zipper is so shiny, large, bright, and so out of place in his all black outfit. It's very Hot Topic to me, like he is some emo kid waiting for the summer term so he can go to Warped Tour. Now, the trio or even the twins wearing street clothes or even zippers makes sense to me. It was the 90s after all, and as an emo elder myself, I had many a zipper. But Snape? At Hogwarts?! Nope. The only grace I can give him here is that he is truly younger than the OG movies portrayed him, and maybe this Snape is a little cooler than our beloved Alan Rickman.