A cup-shaped protective body armour (10) to give impact protection is in the form of an outer skin (11) and a honeycomb lining (13) formed integrally with each other of a substantially non-deformable material. The honeycomb lining (13) is on the concave face (12) of the outer skin (11) and is formed by hexagonal cells (14) bounded by walls (15) upstanding from the outer skin (11) in common direction parallel with the central perpendicular (P) to the outer skin (11). A variation in thickness of the outer skin (11) provides fold lines (16) free from walls (15) of the honeycomb lining (13) extending across the body armour (10) to facilitate the conforming of the body armour (10) to the contours or a person wearing it. In addition, wedge-shaped cuts (17) extend along a portion of a fold line (16) from the outer edge (18) of the body armour (10).