Abstract: A reinforced thermoplastic lightweight film sheet is disclosed in which a lightweight plastic net or net-like product is freely sandwiched between at least two layers of lightweight thermoplastic film. The net is freely movable with respect to the film layers except along selected strips where at least the plastic film layers are bonded together fixedly securing the net thereat therebetween. The reinforced sheet is especially useful as bagging material where it exhibits increased burst strength and rupture resistance and reduced elongation and creep.