Pouch Attachment Ladder System – PALS:
A grid of nylon webbing invented and patented by United States Army Natick Soldier Research, Development and Engineering Center used to attach smaller equipment onto load-bearing platforms, such as vests and backpacks.
PALS consists of webbing sewn onto the load-bearing equipment and corresponding webbing and straps on the attachment. The straps are interwoven between the webbing on each of two pieces and finally snapped into place, making for a very secure fit which can be detached with moderate effort.