An umbrella for use in a golf bag for protecting items stored in the golf bag, the umbrella comprising: a telescopic shaft including an upper sliding tube, and a lower support tube for slidingly receiving a portion of the upper sliding tube, the lower support tube having a ring fixed therearound; an inverted U-shaped clip fixed to the ring, the clip being capable of fastening to a golf bag; wherein a canopy comprises a first canopy having a substantially flat frame of concave disk-shaped portion and a second canopy having a substantially vertical frame of a truncated, hollow cone-shaped section so that the items within the golf bag are covered by the canopy when the shaft is retracted and the clip is secured to the golf bag.