Flat package for a surgical mesh and a method of packaging a surgical mesh in said package

A flat package for a non sterile protective pouch receiving a sterile surgical mesh, the package comprising

• an external envelope including a front panel and a complementary back panel, an inner face of the front panel and an inner face of the back panel being bonded respectively with a front layer and with a back layer of an internal envelope made of a moisture-impervious material defining a storing compartment configured for receiving the protective pouch, the front panel and the back panel being jointed along contours of the external envelope and, the package having an opening end comprising two tearable portions configured to be torn to separate the front panel upon which the front layer of the internal envelope is bonded from the back panel upon which the back layer of the internal envelope is attached to open the external envelope, wherein the external envelope includes a single sheet which is folded and closed using a longitudinal closing flap, and wherein the tearable portions include a series of weakening cut made on first and second longitudinal edges of the external envelope, the first and second longitudinal edges extending between the opening end and an opposite closing end of the package, and the series of weakening cut in the first longitudinal edge overlap a portion of the longitudinal closing flap towards the opening end.