Abstract: A protective cover for a golf bag having an opening and for holding golf clubs having different lengths is disclosed. The protective cover comprises a top adapted for enclosing the opening, a pair of support members connected to the top, each of the support members comprising a series of registration openings, a clamp associated with each of the supports for securing the support members to the opening of the golf bag, and a pair of guides positioned on each of the clamps, the guides for receiving the supports and allowing the supports to slide therein, one of the guides having an opening which is aligned with the series of registration openings and the other guide having a flange having a tab at one end with the tab being adapted to be positioned into the opening in the one guide and one of the series of registration openings in order to adjust the height of the top relative to the opening of the golf bag.