Key features

• •Material:Polyester. YKK Zipper and YKK Buckle
• •The main compartment is the size of the whole backpack. Mine is 20"h x 12"w x 4.5" deep.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.
• •The size is perfect and meets the personal carry on for airlines such as frontier so you can load these down and not pay for a checked bag.
• •Includes an adjustable hip belt on this bag that fits waist sizes 25-55 inches,but the belly strap is not removable.An adjustable sternum strap, breathable molded foam back panel, and S-shaped shoulder straps ensure you can properly carry the weight of your gear.
• •This backpack is impressively practical for shorter treks,there's a wide color selection to fit any hiker's style.If your torso is longer than 52 centimeters, then Mountaintop recommends you seek a different pack.