Most Helpful Guy
I'm old, sagging is after my time. I mean guys were wearing loose pants low, but its different. My impression is that sagging among white hipsters took off when they started wearing repro jeans. Basically wearing copies of older, higher waisted jean styles but wearing them low like people would now. So I guess the 'right' amount of sag for that look is however much sag you get when you wear your japanese selvedge repro jeans low on the waist.