ALCON : Military abbreviation for "All Concerned" and the foundation behind this backpack. This backpack is designed for you, the adventure seeker. Inspired by many of the tactical features you asked for, including quick trapdoor access, improved interior visibility, hidden dry storage pockets, modular patch system, full length side pocket, protective hood, a padded laptop pocket, and more. This backpack is comfortable, lightweight, and rugged enough for your next adventure. The accessory patch system is sold separately. All patches are designed to give you quick access to everyday items, interchangeable, and secured with industrial strength Velcro.