559’s sit lower on the waist, so you don’t have as much sagging in the crotch area.
Also, they have straight leg instead of the tapered leg. That means very little to me, but it can make you look a little thinner if you have big thights.
levi’s is always “in style” in a way that many fashionistas still wear them and they are still relevant. every once in a while they re-launch their vintage jeans and creates a stir.
i am sure the japanese version is a different, but i think they make good jeans, you can’t really go wrong with them i suppose.