From Simplicity:
This knit dress has only one main pattern piece making it super easy to sew and perfect for beginners. Sized for everyone—includes cutting lines for sizes XXS to XXL all in one. With easy-to-follow instructions, anyone from beginner to expert can enjoy making a variety of these for the summer. The pull-on dress is sleeveless with a round neckline. Use a knit fabric with a lot of drape to complement the side-draping detail on this dress.