The ASP ROLL DELUXE is black and yellow on the outside and grey and yellow on the inside. It consists of the finest structured tech material. The total capacity of the backpack is 20 litres. The large, strong polymer armour ensures that the contents of the backpack are protected from impact. The backpack also has a padded laptop compartment in size 15.6", several smaller inner compartments, 1 outer compartment with zip, 2 outer bottle holders. There is also a mounting option for the front door key inside. This can be conveniently attached to the key ring and then attached/detached by pressing a button. There is also the option of conveniently charging the mobile phone using a power bank. A USB port is already pre-installed on the outside and a cable with a USB connection inside the backpack. The backpack closes magnetically at the top edge, is then rolled up and fastened with a buckle. | Grouptronics ‘AS-Protection' Deluxe Laptop Backpack Shockproof Anti Theft Zip 15.6" Laptops USB Charging in Black