I'm trying to design a felted child's hat with Eco Wool, which is just perfect for felting. Lots of yardage, economical and good for the environment! The problem is that I am guessing regarding how it will felt up. I just checked it's progress and is not felting as much in circumference as in length...which is normal, but I think I should have cast on fewer stitches. Once it's spun out I will block it and see how things look. The bonus is that it knit up so quickly on size 15 needles & I like how blended the felted fabric looks after just peeking in the washing machine.