I am Cassiopée an easy to make, easy to wear dress. Any fabric suits me and you can reinvent me ad infinitum to match your every mood. You and me together we will dazzle everyone like two shooting stars lighting up the sky.

Level : Simple

Sizes : PDF: 34 to 52 – Paper: 36 to 46

Seam allowances: Included

Collection : I AM A Star, I AM Dreaming





All seam allowances are included in the pattern.

The different pieces don’t overlap with each other. Once printed and assembled, simply cut the pattern at your size and start sewing.

The folder contains the digital sewing pattern in A4, US Letter, A3 and A0 formats along with a step by step illustrated explanation guide.

Digital pattern formats:

A4 and US Letter – print at home – 24 sheets

A3 – print at work (we won’t say anything) – 11 sheets

A0 file (aka: copyshop, printshop, wide files) – print at a copy shop – 2 sheets

The file will be emailed to you upon payment. You will also be able to access the file anytime on your account.

Size 34 to 52. See sizing guide below.


All seam allowances are included in the pattern.

The pattern is enclosed in an envelope. It contains the sewing pattern along with a step-by-step illustrated explanation guide.

The different pieces overlap with each other so you will need to trace the pattern on paper. If you prefer a ready-to-cut pattern, try the pdf version as pieces do not overlap with each other.

Size 36 to 46. See sizing guide below.




Optional: 10” by 35” of iron-on interfacing


Plain weave cotton, crêpe, chambray, denim, corduroy, wax, flannel, linen, viscose and much more;

The flowery print is a crepe from the collaboration between I AM Patterns and Atelier 27 called “Eastern Wonders”.


Sizes 34-36 38-40 42-44 46-48 50-52
55” wide fabric 21/8 21/4 3 31/8 31/4
43” wide fabric 3 31/8 31/8 31/8


Height: 5’5” – Cup: B

Sizes 34 36 38 40 42 44 46 48 50 52
Bust 303/4 321/4 337/8 351/2 37 381/2 401/8 413/4 431/4 447/8
Waist 227/8 241/2 26 271/2 291/8 303/4 321/4 337/8 353/8 37
Hip 33 355/8 361/4 373/4 393/8 407/8 421/2 441/8 455/8 471/4


Sizes 34 36 38 40 42 44 46 48 50 52
Bust 37 381/2 401/8 413/4 431/4 447/8 461/2 48 495/8 511/8
Sleeve length* 215/8 217/8 22 221/4 221/2 225/8 227/8 23 231/4 231/2
Garment length** 365/8 365/8 37 371/2 373/4 381/4 381/2 39 393/8 393/8

*From the neckline at the shoulders to the bottom of the sleeve.
**From the neckline at the shoulders to the bottom of the skirt.


Under @paul_et_paulette’s crafty mind the gathers of I AM Cassiopée have become exposed frills for an even more romantic touch. A very simple hack. So simple in fact that it’d be foolish not to do it. Follow the guide.

Autumn, winter, spring, summer, Cassiopée is perfect all year around. There are as many Cassiopée as there are seamstresses. I AM Cassiopée’s original pattern comes in ¾ sleeves. This complimentary short-sleeve add-on lets you reinvent your favourite dress for warmer days.

Discover a refined version of I AM Cassiopée, your favourite dress. We have amended the back and sewn the new block with a laced fabric. This version of Cassiopée reaches a new level of delight.

With this complimentary add-on you’ll be able to sew the I AM Cassiopée dress in a jersey fabric and finished with ribbing. It will be perfect to stay comfy at home. Download the instructions to sew this comfy Cassiopée for yourself.

Add a button placket to your Cassiopée dress. It will give it a more romantic look. Download the free extension now to make yours.


Very simple and fast to sew and it’s very comfortable. I think I’ll make a hundred of those!

The Cassiopée dress by I Am patterns is a safe bet that you can make again and again. And it’s so enjoyable to wear!!!

An extremely fast pattern to sew. I recommend it if you’ve just started sewing or if you just want to make a dress in no time!


I AM Patterns patron de couture Cassiopée robe froncée à la taille et manches chauve-souris
  • Save

9,9015,00Select options

  • Save

You may also like…