MIFULGOO Kids Waterproof Backpack for Elementary or Middle School Boys and Girls (Black with Chest-Strap) Polyester Value-added features: Back has an Anti-theft zippered-pocket for valuable items; Removable Chest-Belt to get a good fit and does a good job of taking the weight off shoulders Creative feature: Front compartment with 1 zipper will open freely up to 180 degree like a book, interior has 2-mesh-pouch, 1-open-pocket and 3-pencil-holder to keep stored items organized and easy to find Large Capacity: Exterior has 4 zipped compartments, Middle and Main compartment are roomy, the largest compartment has a padded sleeve and 3 smaller pockets, on each side has a deep mesh pocket for bottle or umbrella Safety: Reflectors on both sides and shoulder straps Approximate dimensions: 17 (H) x 12 (W) x 7 (D) inches, perfect size for Elementary school children