Main compartment opens 180 degrees for easier access to gear and is lined using Velcro Brand loop for added customization options; Modular padded laptop sleeve adjusts in size and position and is Velcro Brand looped faced. Accommodates up to a 15" laptop; 3-D molded foam back panel with low-profile design provides added comfort and allows pass-through for rolling luggage handles; Hot-pull tab can be set up for quick access to the main compartment; Adjustable padded shoulder straps with multiple web attachment points for key accessories; Pass-throughs for hydration or comms equipment; Light-colored interior improves interior visibility; Bonded nylon thread throughout with critical seams and attachment points bartacked for extra durability; Roll-top opening can be completely zipped shut before rolling down and secured; Tactigami Double Admin piece included in each bag