Combined collapsible soda bottle and cap
FIG. 1 is a perspective view of a combined collapsible soda bottle and cap embodying my new design; 
     FIG. 2 is a front elevational view thereof, the rear and all side elevational views being identical to the front shown in FIG. 2; 
     FIG. 3 is a top plan view thereof; and, 
     FIG. 4 is a bottom view thereof.