This is the compression panel from our Aston House BC pack. The panel is a single layer of hypalon laminated to velcro loop on the back. It is PALS cut with holes on the edges for accessory cordage. You can mount PALS pouches on the front, and either PALS or velcro pouches on the back. It includes side, top, and bottom straps. It is suitable for mounting on the original Aston House, the Umlindi, and perhaps a variety of other maker's packs.