Gigantic isn't even in the same league as this guy!. Measuring a whopping 39 long x 18 wide x 15 tall with no less than eleven assorted - size exterior pouches, lots of webbing to attach even more pouches, double-zip access to the cavernous main compartment, double compression straps on each end, metal D ring attachment points abound, top clear ID window, wrap-around carry handle, adjustable, removable shoulder strap with movable pad and when the load gets too heavy, we've provided a padded, adjustable shoulder strap harness concealed in the bottom of the bag when not needed. Measures 39 L x 18 W x 15 H.