The Pro-Tech backpack comes with an external USB port so you can connect your peripherals to a battery pack (not included) and stay charged while out on the go.  The interior of the bag features a laptop compartment with seatbelt material safety strap and hook and loop closure large enough for a 15" computer, a slip pocket and zippered pocket. The exterior has two zippered pockets on the front and a pass-through port for headphones. Side mesh pockets hold essentials and two side buckled straps help give this backpack a slim profile when needed. Adjustable backpacks straps, an air mesh padded back with lumbar cushion and a padded top carry handle complete the package.