The present invention refers to a flexible multiple chamber bag for storing medical products comprising three chambers: a) three adjacent chambers, a first chamber (1) partially separating a second upper chamber (2) from a third lower chamber (3) by welded seams (4) and (5), b) said second chamber (2) and said third chamber (3) being partially connected by a welded seam (6), c) said welded seams (5) and (6) being peelable when applying pressure on the bag (10), said welded seams (5) and (6) having the shape of an inverse letter "V" with increasing angle of the lines of said "V", each welded seam (5) and (6) starting at the basic point (8) of said "V" and terminating essentially in a right angle at the circumference weld (7) of said bag (10), d) said basic point (8) of said "V" being fixed and non peelable when applying pressure on the bag (10), e) said welded seam (4) being non peelable when applying pressure on the bag (10), starting at the basic point (8) of said "V" and terminating essentially in a right angle at the circumference weld (7) of said bag (10), f) said bag (10) comprising a hanger flap extending from the top end of said bag (10) next to said chamber (2) within said circumferential weld (7) and g) a medical port (9) welded to the lower end of said circumferential weld (7).
