Abstract: A device is provided for protecting a structure against the impact of projectiles and explosion fragments or splinters, which is of the type having a laminated elastomer and fiber based structure, formed preferably by organic aromatic polyamide fibers.This laminated structure includes at least one flexible module formed of a plurality of superimposed composite layers, each composite layer including an intermediate textile layer and adhered on each side to a film of very small thickness made from elastomer, the different composite layers being bonded together by vulcanization and their number depending on the desired degree of flexibility for the module.