Abstract: A ceramic amour plate (1,41,50,70) having auxetic reinforcement (2,40,51,71). The auxetic reinforcement may be provided utilising auxetic fibres, auxetic knits or weaves, or lay-ups exhibiting auxetic behaviour. The auxetic reinforcement reduces cracking of the ceramic plate to improve multi-hit performance. The reinforcement may be provided as a layer (2,40, 51) bonded to the surface of the ceramic plate (1,41,50) or as an integral part (71) of the ceramic plate (70).