MinoCat 30L Military Outdoor Sports Tactical Molle Sling Deployment Backpacks Rucksacks Waterproof 600D Nylon Bags Camping Hiking Trekking Color: Black 2 Front Pockets. Capacity: 30L. Adjustable carrying system makes it possible for users to adjust the backpack to optimal position and reduce fatigue owing to heavy load effectively. Chest belts can adjust distance between the two shoulder straps and strengthen the stability of the backpack. The waist belts which can disperse the load to the lumbar area more effectively. It makes the backpack more comfortable.