[header] How to shrink polyester [title] Turn the garment inside-out. [step] Heat high enough to shrink polyester is also high enough to cause colors to fade. Turning your garment inside out before washing will help protect it.. [substeps] Avoid washing multiple garments together. 
Turning the garment inside-out will reduce fading but won't prevent the colors from bleeding. [title] Wash the garment in extremely hot water.