Abstract: A prosthesis socket material includes a pre-formed tubular sleeve-like reinforcement web of fibers pre-impregnated with an uncured, preferably water activatable, moldable, hardenable resin material, with an integrated prosthesis coupler at one end, the coupler provided with a central aperture. The material is moldable under compression using a one-step compressive molding system. The web of fibers preferably is constituted of a radially compliant tube made of bias braided carbon fibers.