A closure system anti-spill function infant feeding bottle has a substantially cylindrical lower peripheral edge portion having an internal thread which can be screwed into the bottle of the male thread, the lower peripheral edge at the edge of the top of the female thread is connected to the part, a lower closure ring including the lower partition which closes the cross-section, the lower partition has a first top and a first bottom surface, while the in the first top surface, the first lower surface on the other and at least one lower through-flow bore opening, a lower closure ring, a substantially cylindrical upper peripheral edge having an external thread, the external thread screw for fastening the upper edge portion of the upper peripheral edge of the drinking teat a top closure ring comprising an upper peripheral portion which connects to the ring, the upper partition which closes the cross section thereof is connected to the upper peripheral edge portion at the edge, the upper partition is arranged so as to seal the first top and a second upper surface and the second lower surface are, on the one hand in the second lower surface, on the other hand and at least one upper through-flow bore opening at the second upper surface, an upper closure ring, a lower closure ring upper a locking element for locking the closure ring rotatably and detachably to one another, a circular lip seal made of a coaxial soft elastic material to the lower peripheral edge, the circular lip seals, a first upper surface a sealing lip facing the at least one axial direction are disposed, and a least one circular seal profile portion, a circular seal shaped portion is engaged with the lip seal, against the upper periphery on a coaxial, or is disposed on the second lower surface, or vice versa, by rotating the upper closure ring with respect to the lower closure ring, the upper flow-through holes, to optionally lower throughflow hole can be a position and heavy that do not fit position ov
