The present invention relates to a prosthesis (1) for hernia repaircomprising a reinforcement layer (2), a first barrier layer (3) of anti-adhesion materialcovering at least a part of a surface of the reinforcement layer, and a secondbarrierlayer of anti-adhesion material covering a remaining part of the surface ofthereinforcement layer, the second barrier layer being formed of one or more flapmember(s) (4).