Betty Blue This fabric is a lightweight twill. It is thin and airy but still strong and tough. Orange, red, and yellow flowers dance with geometic shapes on a cornflower blue background. It is 100% cotton but does have quite a bit of diagonal stretch due to the twill weave. There are only a few of these so order early if you want one! p.s. That child in the picture is 33 pounds. My little guy ain't so little any more!