I got the yellow quilt set in king for my queen bed because I didn't want to worry about shrinkage. It really didn't shrink much at all and I've washed it twice on cold, gentle cycle and dried completely in dryer. 100% polyester. Doesn't wrinkle if you pull it out right away. I'm in love with the bright gold/ yellow look for summer bedroom colors. This quilt set comes in so many great colors.