I'm at about 30 t-shirt quilts and started out using Pellon 911F--while its lightweight I thought it felt more "felty" and also, while I also bought by the bolt 40% off at JoAnn's, the width was narrow enough that I felt like I either had a lot of waste or pieced fusible. Then I found 54" wide Pellon ShapeFlex--it's woven and very lightweight. This is the stuff that is used in men's suits in the collars and lapels. JoAnn's has it in the 20 or 24" widths, but my LQS buys it (and sells it) in the 54"widths. Besides the convenience of the wider width, I prefer the weight and feel too