Another way to reduce weight is the camera and lenses. I also have an 80D and some pretty heavy lenses but in addition, I have an SL2 with a selection of STM lenses. (Note: while the SL2 has fewer features than the 80D, it has the same sensor.)
80D body: 23 oz
SL2 body: 14 oz
3 lenses:
STM...