I’m on vacation in my home state of Vermont and doing some rucking with my GORUCK, taking advantage of the terrain and views.
They promote a Ruck Plate Carrier that can hold a 30lb Designed plate. While it can’t hold as much weight as a full on Vest, it does look compact and easier to move/exercise with, as it is held high up and close on the back.
Go to their site and go to the Keep Training section.
For those who like to ruck with their money still in their pockets scroll down to Bruce's Weighted Harness on this link. I added a piece of webbing that could go around my torso to hold the weights in place. It works really well.