Abstract: A golf club bag comprises a bag and a stand assembly. The bag has a flexible barrel, a base fixed to a bottom of the barrel, a head frame fixed to a top of the barrel and a reinforced device. The reinforced device is projected from the head frame. The reinforced device has a length shorter than the barrel. The stand assembly has two shafts pivoted on the head frame at where opposite to the reinforced device and an elastic member. The elastic member has a bottom end inserted into the barrel and pivoted on the base and two free ends pivoted on the shafts respectively. There is a distance between a pivotal position, which is the elastic member pivoted on the base, and a periphery of the base.

Abstract: A base of a golf club bag has a main member, which is made of a flexible material, having a bottom portion, a sidewall projected upwardly from a periphery of the bottom portion and at least a flexible portion, such that the bottom portion is divided by the flexible portion into a fixed portion and a movable portion and the sidewall is also divided by the flexible portion into a front portion and a rear portion. A front supporting device, which is made of a flexible material that harder than the main member, is provided in the front portion of the sidewall, and a rear supporting device, which is made of a flexible material that harder than the main member, is provided in the rear portion of the sidewall.

Abstract: Base bracket of golf bag, including a front section, a rear section, a first and a second flexible sections formed on the edges of corresponding portions of the open ends of the front and rear sections and a connecting member bridged between the first and second flexible sections. The front and rear sections together form a receiving space with an opening facing upward. The base bracket can be swung about a predetermined portion of the connecting member. When the golf bag stands upright, the lower faces of the front and rear sections are horizontally attached to the ground. By means of the weight of the golf clubs placed in the receiving space, the golf bag can stably stand on the ground. When a user pushes and tilts the golf bag, the rear section is upward stung and the front section keeps contacting with the ground. A supporting leg set pivotally disposed on the golf bag and the front section together support the golf bag to stand in a tilting state.