6 ADJUSTABLE STRAPS- For tying up your pack or hanging sleeping bag, mat, hammock, tripod, and other gears.
Computer Compartment:Your Laptop(big enough for a 17"laptop).There is a compartment that can be used for a bladder and a holding place for the tube but no specific bladder space.
It meet size requirements for most airlines.
The hip belt is adjustable but can not be removed.(the size:25--53 inches)
-WARRANTY- Includes 90 days limited warranty for hiking backpack