Meet the Outdoorsmans Atlas Trainer: an alternative to ruckstack training with rocks and sandbags that lets you use standard Olympic weight plates. It lets you carry up to 90lbs. It adds more intensity to your hikes and helps you work your legs harder.
The Outdoorsmans Atlas Trainer has a 7lb frame with a polycarbonate construction and billet machined aluminum plate holder. It also has a 500D Cordura belt and harness.