It's modeled to look like the jacket version of the POA quidditch uniforms. I don't really want to make the full uniform and then I remembered how much I LOVED my letter jacket back in high school. Wouldn't it be great to make the Hogwarts version of that?
So here it it. It matches the stripes, star, and number font they used. Took a bit of liberty with the letter font. It has a serif because it looks more like a letter jacket that way. The patch is the same used on the uniforms and there is a little gold griffin as the zipper pull.
My Comet 260 also makes an appearance