Spun Polyester Made out of 7.2 Oz 107% Jet Spun polyester Excellent Color fastness-Color will not run or fade. Stain Resistance- Polyester does not soak up stains as cotton,thus, launder much easier. Spun Polyester has the feel of Cotton and none the Shrinkage of cotton. Spun Polyester require no Ironing. g.