【Material】: 900D nylon material 【Size】：14.5x 7.8x 18.8 inches (about 37x 20x 48cm) 【Storage Space】：Spacious main compartment can hold 15" laptop as well as 15", 14" and 13" MacBook/laptop, multiple pockets for daily essentials and electronic accessories, side elastic mesh pocket for easy storage of travel gear, umbrella or Water bottle.