A body implantable penile prosthetic assembly includes a reservoir, a penile implant, and a pump. The reservoir is for containing a saline solution. The penile implant is penile implant operable to shift between a flaccid state in which the penile implant is at least partially depleted of the saline solution and an erect state in which the penile implant receives the saline solution from the one or more reservoirs. The pump is configured to generate pressure that causes the saline solution to flow from the reservoir to the penile implant to cause the penile implant to form the erect state. The penile implant includes a cylinder for receiving the saline solution. The cylinder is formed from a multilayered material having an inner layer comprising polyester and an outer layer comprising silicone.