I have hip replacement and one in the way. This freaking saved me. Was able run walk 3.2 miles with out the load on my hip. Felt natural a must investment for your fitness and ruck work.
Works great, but took awhile for them to respond that it doesn't come with any locking collar. The picture when you order shows it with a locking collar on it. Other than that, I've been using it daily. Highly recommend.
Been rucking for exercise for years, first with Alice pack, than go ruck packs, and now the fng Rucker, like better for neighborhood rucking, than a packed out backpack, again awesome
"RDR02" Ruck Trainer
By far the best tool for your training experience. Time management is way better I can just throw a plate on and hit the trails.