Abstract: An insert for a golf bag, for dividing the full depth of the bag, the insert being attachable both to the top and to the bottom of the golf bag. The insert includes one divider along a diameter of the bag, with two additional dividers trisecting the one. All the dividers are fixed to a bottom plate, and the bottom plate can be provided with holes so the bottom plate can be fixed to the bottom of the golf bag. The insert is constructed of polyethylene or other polyolefin so the clubs slide easily into and out of the bag.