Film for wrapping food products, made of an edible or inedible material, curved onto itself along a longitudinal axis to form a cylinder in which the longitudinal side edges of the film are overlapping to a certain extent are in direct contact with each other but not otherwise connected, shirred or wrinkled in the manner of an accordion to form folds perpendicular to the axis of said cylinder, that can have an internal support in the form of a tube of a stiff material, and which can be externally coated by a separation sheet and an also shirred tubular net, and the method for manufacturing it.