When I saw it, I was a bit skeptical. Leather jackets, especially with lapels, tend to look stiff on me, and since I can be a bit uptight at times, it makes me look even more stiff, or at most, not quite right. But I also thought "hey, it's only $0.73! This is ****ing awesome!!" and if nothing else I could practice sewing and altering with it.
So with no further ado, and with no more specific sewing tutorial than the one I've used to alter sweaters, here it is!