A combination towel and cover for a golf club bag. The device is a flat, foldable material having a water repellant side and a water absorbing towel side. Fastening members of the hook and loop type are positioned along selected peripheral edges of the device to hold it in a folded configuration. When fully folded, it is attachable by a clamp to a golf club bag. When unfolded, it is attachable by snap members to the snaps built into golf club bags such that its towel side is exposed for use. When so disposed, it may be flipped over the clubs to protect them during inclement weather, but the golfer may still reach under the device to use its towel side even when it has been flipped over.