The Kombat Molle Campatible Expedition Pack  has a large 50 litre capacity and is light weight.  The back panel is padded with adjustable mesh shoulder straps.  There are also adjustable compression straps on the side and bottom.
 
The main compartment has interior organisation pockets.  
 
The bag also has two frot and two side zippered pockets and the Expedition pack Bergen also has a sleeved compartment for your tablet or laptop.
 
The mag measures 12.5" x 19.5" x 7"
 
This is a great all round bag, ideal for cadets, military shooting scenarios, field sports and camping.