I'll second AD6KA on the Pelican Case idea.
I use Pelican Cases for most of the rigs that I
cart around. The Pelican 1120 is a good size for the Elecraft KX1 and the 1200 fits the K1 or FT-817.
For bigger rigs like the IC-7000, IC703/706, TS-50, FT-897 etc the Pelican 1450 works nicely but it
is a bit bulky.
Some people argue that these cases are too expensive, but IMHO they are a lot cheaper than replacing a rig. I dropped my Elecraft K1 in the driveway on the way out to the car a few months back (ouch!) but
there was not one bit of damage done to the rig in the Pelican case.
I have also found that smaller cheaper QRP rigs like the Small Wonder Labs SW40+ will fit into a plastic food container quite nicely and still be small enough to fit into a backpack ... this also keeps the rig dry in the event that you get caught out in the rain while hiking.
I have a quite small Pelican case for my Bencher BY-1. I just can’t use those small cheesy "plastic & pot metal" sets of iambic paddles. And you can't wrap of $125 paddles in a small towel and throw it in your day bag, though I've seen it done.