. A foldable wheeled traveling case assembly, comprising a traveling case made of a compressible soft material and having a rigid bottom plate, a base formed from a leg member and a wheel support that constitute front and rear parts, respectively, of said base, and a handle mechanism fixedly mounted to an upper side of said wheel support;
said wheel support having two wheels connected to two lower ends thereof and two open-topped connecting brackets located in front of said two wheels, each of said two connecting brackets being provided at two lateral walls with two openings;
said leg member being fixedly connected to a lower side of said rigid bottom plate of said traveling case, and including two vertical supporting legs, and two horizontal bars extended from said two supporting legs toward said wheel support; each of said two horizontal bars being provided at two lateral sides with two elastic fastening devices; and
said two horizontal bars being separately received in said two open-topped connecting brackets with said elastic fastening devices firmly engaged with said openings on said connecting brackets when said traveling case is in an extended state and said bottom plate thereof is turned to a horizontal extended position; and said two horizontal bars being movable out of said two open-topped connecting brackets by disengaging said elastic fastening devices from said openings on said connecting brackets and upward turning said bottom plate to bear against said traveling case, and thereby allowing a reduced overall volume of said wheeled traveling case assembly.