The present invention relates to a device for protecting against impact, which comprises a sheet of composite material with a pattern engraved on a face thereof, said composite material having an elasticity module between 0.8 and 250 GPa and being formed by fibres disposed in a polymer matrix. By means of the pattern, the sheet acquires greater flexibility in the engraved areas, providing a flexible shield that adapts to surfaces with curves and allows the protected element or user to move easily.
