44-45" wide 100% cotton lawn from the Lagoon line by Cotton + Steel. This line is designed by Rashida Coleman-Hale. The last pic shows other prints Stitch has available in this line.
This is a cotton lawn and is more lightweight and suited to garments. It is to be used the same as a quilting cotton, but is definitely a different feel that is really quite nice. I also found this description online to assist: Lawn is designed using fine, high-thread-count yarns, which results in a silky, untextured feel.