(A,B) Handmade PDS/PTFE (Gore-Tex) composite reinforcement (WL Gore & Associates, Newark, Del) prior to implantation. (C) Concept and design of a composite resorbable armored bioprosthesis. The specific design of Gore-Tex armor allows for multidirectional growth and resistance to dilatation. The unique weave of the upper armor gradually adapts and functionally compensates for autograft growth characteristics. Bottom red box on the left: initial implantation. Red box in the middle: intermediate phase. Red box on the right: full development. Note the progressive resorption of the resorbable layer and the progressive expansion of the unitary elements that make up the mesh, which is composed of the auxetic material ePTFE [86,87]. Adapted with permission Order Number 501943363.