the present invention concerns an adjustable shroud useful with any melt spinable polymers during their production . the adjustable shroud can be produced from different embodiments such as hinged wall sections , bellows , or collapsible or nesting walls . the adjustable shroud may be controlled by means of hydraulics , pneumatics , mechanical worm screws powered by an electrical motor or manually , or any other suitable means obvious to those skilled in the art . the length of the adjustable shroud functions such that it extends toward or away from the spinneret depending on the desired length of the shroud .