woah, nice pants. i want to do that with a pairs of old gap jeans, using some already skinny ones for a pattern. i wonder if you based them off another pair?
yes, i laid a pair of my own skinny jeans over them, traced with tailor's chalk, and cut around them. then i made them a tiny bit skinnier and hemmed them twice, locking the seams in the crotch and at the bottom hem of the legs