This expandable tactical backpack is constructed with high quality 600d denier polyester material, heavy oversized sippers and tabs. Expandable main compartment with multiple gear pouches and molle compatibility that allows customizing the pack for your nees. main compartment expands an additional 5inch to  accommodate extra vital assault gear to complete your mission .main compartment expands from 39 liters to 64 liters . side parachute buckles allow for tightening to provide a compact, easy to transport pack. the smaller pocket on the rear contains an organizer pocket inside. contains straps inside the main compartment for securing a laptop.  
constructed of 600 denier polyester with vinyl backing
large expandable main packing compartment 
organizer pocket
side parachute clasps.