The military inspired Berghaus Multi Mission Pack System or MMPS has been developed to build a flexible backpack that can carry up to 20 L of kit. The Berghaus MMPS pockets work with the Crusader, Spartan and Centurio rucksack by adding an additional 20 L to the rucksack. The MMPS pockets can zip together to create a 20 L daysack and can offer total flexibility in supporting different mission requirements.