Prosthesis for supporting a breast structure

A prosthesis for supporting a breast structure within a patient, the prosthesis comprising:

• a reinforcement part comprising a first fabric made of a first arrangement of yarns and configured to receive at least a curve-shaped lower portion of a breast structure, said reinforcement part intended to be sutured to a chest wall or to an infra-mammary fold, said first arrangement of yarns conferring to said first fabric an elongation under 50N in a vertical direction of E1,
• a fixation part comprising a second fabric made of a second arrangement of yarns and intended to be fixed to a pectoral muscle, said second arrangement of yarns conferring to said second fabric an elongation under 50N in a vertical direction of E2, and
• a transition part comprising a third fabric made of a third arrangement of yarns, said transition part connecting together said reinforcement part and said fixation part, said third arrangement of yarns conferring to said third fabric an elongation under 50N in a vertical direction of E3,
• wherein E3 is more than 100% greater than E2.