Simple Life Pattern Company | Lydia’s Circle Skirt Add On. Downloadable PDF Pattern for Toddlers and Girls Size 2T-12. Lydia’s Circle skirt add on. Lydia’s Ruffle Back Leotard pattern is getting an add on! This is an add on, you will need the original Lydia’s Ruffle Back Leotard pattern to make a complete dress. This is for the skirt and pocket pieces only (and construction tutorial). This add on is loaded with so many options. Add the ultimate twirl factor to Lydia by choosing the circle skirt or there is also a gathered skirt option. Choose from a simple hem, skinny hem band or ruffled hem. The pattern includes side seam pockets or patch pockets, a faux sash and back bow tie. Choose between top and dress length for even more options.