Specification: Material:Nylon Color:Black M Size:15.35*11.81*6.29inch/39*30*16inch L Size:17.72*12.59*7.08inch/45*32*18inch Features: 1. Movable padded dividers and an elastic strap to effectively separate and protect your valuable camera equipment. And when the need to carry your camera subsides,the dividers can be effortlessly removed, transforming the camera backpack into a versatile travel or everyday backpack,catering to your changing needs. 2. The camera bag backpack is padded with thicker foam to better protect camera and computer equipment from accidental impacts. Anti-theft zippers on the side keep camera equipment and other valuables safe while on the go. 3. Crafted from premium,waterproof,and durable Oxford fabric,photography backpack includes an extra rain cover for double waterproof protection on rainy days. To enhance waterproof performance,the front pocket features a waterproof zipper. Notice: The size is measured manually, and the error of 1-3cm is normal.