A breast prosthesis includes a plurality of films, including: a first film, a second film, a third film and a fourth film. An interior weld seals the second film to the third film so as to define an interior chamber between a portion of the second film and a portion of the third film, which is filled with a gas. A peripheral weld that has a shape of a breast form footprint seals the first film, the second film, the third film and the fourth film. The peripheral weld is spaced apart from and outside of the interior weld, so as to define a first chamber between the first film and the second film. One of the welds defines a second chamber between the third film and the fourth film. The first chamber and the second chamber are filled with a second resilient material.
