Standard 2-inch hole plates slide directly onto the Backstack spindle. The same plates in your gym or garage — no adapters needed.

The integrated collar locks your plate firmly. Zero movement, zero rattle — even under heavy dynamic loading during pull-ups and carries.

Adjustable harness distributes the load high across your back. Fits in seconds. Comfortable across long sessions and rucks.

Swap plates between sets. Scale from 5kg to 20kg+. Clip in resistance bands. Walk, ruck, pull, push. One piece of kit does it all.