... Sewing | Patterns

Cosmo Dress // Women's Bodycon Party Dress Sewing Pattern.

by Our Lady of Leisure
$12 Tax included
Ready for Download!


  • A Print-At-Home PDF 22 x A4 or US Letter pages.
  • A Copy Shop PDF 2 x A0 pages to print at your local print shop (ie. Kinkos, Officeworks)
  • An instruction file 11 pages of very detailed sewing instructions with illustrations. , Download size is 2.4mb.


The Cosmo Dress is a playful cut-and-sew knit dress with milkmaid style sleeves and a sexy slit in the skirt. It’s a great pattern for bright fabrics, colourblocking or neutrals. This easy-to-wear style is classy enough for cocktail bars and sexy enough for a hot date.

The Cosmo has a flattering gathered bust and a firm-fitting bodycon cut. It is "pull-over" styling, so it has no zippers or buttons to worry about. Fit it to your body and it will give you a "spanx" effect, exaggerating your natural curves.

Skill Level These instructions are aimed at intermediate sewers. You will need a good sewing vocabulary and a little bit of experience sewing with knit fabrics. A serger is required to make this dress

Sewing Machine Requirements • An overlocker (serger) threaded up for stretch knits is required for the main seams. • A sewing machine with a ballpoint needle for the slit.

Material Requirements This pattern is designed for knitted fabrics with a minimum of 5% spandex (aka lycra). The fabric should have at least 20% stretch. Ideal fabrics include ponte, scuba knit, sateen or thick jersey.

read more

Materials you need at home:

  • 1.8m (2 yards) of fabric with a width of 150cm (60”)
  • 1.4m (1.5 yards) of knitted elastic with a width of 5-7mm (1/5”-1/4”)
  • A medium sized safety pin.
  • A serger or overlocker is required to make this pattern