This is a simple but effective way to add storage to the backpack range. The rigid board fits all the back packs except the Mini Packpacks. The board is secured in the bags by quick release clips in the centre of the bag. Both sides has a series of elasticated loops of various sizes and some are lined up to allow boxes to be secured by two loops. The bottom of each side has a series of nylon pouches to secure further equipment. Each pouch varies in size.