Abstract: The invention concerns a new paper shopper or bag (B) and a system for the manufacture thereof, said bag comprising a folded and glued sheet (P), two handles (M, N) placed in proximity to two opposite edges (F1) of said sheet (P), forming the upper edges (B1) of said bag (B), said sheet (P) being folded along at least one line (A), transversal to the longitudinal axis (Bx) joining said handles (M, N), said line (A) forming the continuous and jointless bottom (B3), and wherein the lateral edges (F2) of said sheet (P) are coupled in such a way as to obtain the two vertical closed sides (B4) of the bag (B). Said system comprises a station (1) for unwinding a continuous sheet (F) according to an advance direction (X), and each bag (B), before the cutting operation (11) that separates the individual bags, is arranged with its main longitudinal axis (Bx) placed transversally with respect to said advance direction (X).