This 50 Litre Rucksack is suitable for 2 – 3 day Ops/ Hike. One of the challenges with regular rucksacks is that the access to the gear is only from top, which means that everytime the user needs to remove or put in gear, the stowed gear in the rucksack tends to shift. The WAR MONGER 50 L Rucksack overcomes this issue by providing zippered access from the back of the Rucksack which opens as a flap.