A true messenger in concept, it stays very flat when carrying loads like a laptop, but its ingenious construction allows it to square-out to accept a huge load-out. The full suite of tactical/professional features included make it a genuine work-bag. The shoulder strap is sewn directly to the sides with huge x-stitches so there is no hardware to break under heavy loads. The strap has a thick, comfortable pad with modular loops for attaching pouches etc. and a quick-release buckle with lock for emergency drops. The webbing used throughout the bag is a class-leading diving-tank strapping that is stiff yet soft on skin. The front surface under the flap is covered in modular (M. O. L. L. E. -Compliant) webbing to load-out numerous pouches/etc. , but keep them hidden/protected under the unassuming flap. The flap-straps compresses bulk with oversized lock-buckles and the front has a large loop-fastener area which also fits our available i. d. window patch. The patch can be secured to the flap w/ our Civilian(R) Rewind(TM) cable gear retractor. There is a large zippered pocket on the flap and the flap itself unzips in the front to allow access to the main cargo bay without opening the buckles! There is also modular webbing on both sides of the bag for attaching side-pouches (for water bottles etc. ) and some more next to the rubberized top-handle. The interior of the main bay is covered with 4 stuff-pockets for magazines, bottles, first-aid kit etc.