It's taken a lot of liberties with the outfit. So has Deadpool, but his changes a lot so it doesn't matter much. Wolverine... all the unnecessary seams, the steel-toed boots, the techno-gloves, the angles on the brown section of his top, the tiny little belt... all these are really, objectively altered elements of the costume. I could nit-pick about his shaven arms and the goofy leather texture, but the other details are pretty glaring.