A modular golf bag having an external frame is provided. A plurality of poles connect a frame top capable of receiving golf clubs to a frame bottom. A pliable bag body internal to the plurality of poles extends between the frame top and the frame bottom such that a cavity capable of receiving golf clubs through the frame top is formed. A plurality of pole sleeves are attached to the pliable bag body. Each pole sleeve surrounds at least a portion of the length of a pole such that each pole runs through at least one pole sleeve. The plurality of pole sleeves provide structure to the pliable bag body by securing the pliable bag body to the plurality of poles in an extended position. At least one additional storage compartment may be detachably connected between at least two of the plurality of poles.