Pavel Sport Outdoor Military Rucksacks Tactical Molle Backpack Camping Hiking Trekking Bag Size Approx. :26x 23 x 47cm/ 10.23 x 9.05 x 18.50in(1-2CM/ 0.4-0.7inch deviation) capacity : about 30L Chest belts can adjust distance between the two shoulder straps and strengthen the stability of the backpack.Adjustable & removable chest belt and hip belt.The waist belts which can disperse the load to the lumbar area more effectively. It makes the backpack more comfortable. Breathable mesh backing for comfort.It is propitious to breathe. Enhanced back support for ventilation and comfort Features spacious main compartment with zip around closure, interior zip pocket and mesh pocket.