Expandable & Large Capacity: Normal capacity is 29.5L, After Expanding:36.8L. This high school backpacks for student with expandable feature offers you more packing capacity than typical student backpack. 1 separate laptop compartment hold 15.6 Inch Laptop or less. 1 spacious packing compartment roomy for daily necessities,tech electronic accessories.Front compartment with many pockets and key fob hook,make your items organized and easier to find. It's nice present for boy Multiple Pockets & Organized: The large book bag owns over 17 independent pockets for large storage and organization for small items. 3 spacious main compartments with many hidden pockets can accommodate lots of stuffs like school supplies, back to school supplies, clothes, cord organizer; side deep zipper pocket for easy access to frequently - used items; side elastic net pockets conveniently hold umbrellas and water bottles. Backpack for middle school students and high school teens Luggage Strap & Back Su