I bought some " premuim? muslin from my LQS.... wowzers!!! I never did get it to iron FLAT... it stiffened up like old leather... I think with time and washings it will soften, but the first couple of time around.... it was murder!!!! I steamed and sprinkled, a spritzed and steamed some more... never did get it wrinkle free... just got it good enough to cut GDtrs bloomers out... it is nice heavy muslin, and the weave tightened up nicely , but I"m glad dtr likes to iron!!!! wont buy it again...