For Laptops up to 156 Material Waterproof USB port for load All the space you need to save your things ideal opcin for studies trips or work Multi-functional Backpack Waterproof fabric Waterproof outdoor USB port For cell phone load tablets and laptops power bank not included Main pocket with double closure and large opening Interior with mlmplifiers and organizers main compartment ideal for computers portles up to 156 compartments Higher transport handles to transfer the backpack in the hand