One thing to remember about the costume is that it wasn't leather. It was all black textured vinyl made to look like leather. There was ONE pair of leather pants used for a couple shots that Brandon Lee insisted the production team buy, but he's usually in the vinyl, as the leather would not allow him to properly execute his fight moves.
That info on more on his costume is all covered in the book, "The Crow: The Story Behind the Film" by Bridget Baiss. It's a fascinating, moving, informative, and tear jerking read, and I recommend it to all Crow fans.
Edit: His boots were standard issue 11" US Army paratrooper boots.
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