Practical and comfortable backpack for laptops up to 15.6 ". Reinforced nylon material with extra reinforced seams around the zipper. Waterproof bottom. Adjustable chest strap, ventilated padding on the backsupport of the backpack. Shoulder straps with extra padding and various adjustments. Fixed rain cover. Solid carrying handle on top. One main room with zipper and internal compartment divider for PC with velcro. Two front pockets with zipper. Two outside side pockets.