A collapsible rolling luggage bag suitable for golf bags includes a cover (18, fig. 1) comprising a plurality of panels 46 in panel zones 50a – 50e which are adjacent to each other and arranged in a direction away from a base. The base has first and second sides (130, 134 fig. 10) and a bottom face (110, fig.10). First and second wheels (136a, b, fig.10) are coupled to the base so that at least a portion of the wheels project from the first side and from the bottom face. Third and fourth wheels (142a, b, fig. 10) are coupled to the bottom face and configured to independently swivel. A plurality of rail members (182a-c, fig. 6C) are positioned in the second panel zone, and a plurality of rail members (186a-c, fig.10) are positioned on the base. When the luggage is in an upright position the rail members engage to form a bumper that extends from the base along a portion of the cover. Preferably, when the front flap is removed the side portions (30, 34, fig.9) can pivot away from each other about respective folds (42, fig.9) to form a butterfly opening.
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