
Discover Tétra, the clever 4-in-1 bag!
The pattern includes 10 possible versions, and each one becomes a 4-in-1 bag.
Video: In addition to the highly detailed, illustrated instructions in the PDF, 2 videos demonstrate how to assemble the Tétra bag.
The Tétra pattern also comes with an additional PDF file specifically designed for projector use.
The 4-in-1 bag
Tétra is the perfect companion for everyday use or travel: compact enough to fit in your suitcase, it gives you 4 bags in 1 to match all your outfits.
4 styles in 1
Thanks to its clever design, Tétra offers 4 looks in a single bag: 1 body + 1 flap = 4 possibilities.
Easily adapt its style to your mood or outfit by simply flipping one of the flap’s two sides over either side of the body.
10 variations included
The pattern includes 2 body shapes and 5 different flap styles, resulting in 10 possible versions.
And each version becomes a 4-in-1 bag.


Practical and discreet closure
Tétra closes with a zipper.
The base of the flap attaches discreetly to the bag using either snaps or hook-and-loop tape, depending on your preference.
Functional and well-organized
Tétra is worn as a crossbody and features 4 practical pockets: 1 zipped pocket and 1 divided patch pocket inside, plus 1 patch pocket on each exterior side.
Dimensions
26 cm (width) x 20 cm (height) x 8 cm (base depth) (W 10 1/4″ x H 8″ x D 3 1/8″).


Tétra pattern skill level
The testers of the Tétra bag pattern mostly rated it as “confident beginner to intermediate” level.
Videos
I filmed and edited 2 videos to guide you through sewing your Tétra bag.
The videos show the assembly (without voiceover) of Tétra version 1 — body and flap. The construction technique is very similar for the other versions. The specific features of the other versions are, of course, explained in the PDF.
Tétra assembly is presented in 2 videos:
- The first covers the assembly of the outer bag
- The second shows the lining assembly and finishing steps
The videos include chapters for quick access to specific steps.
The videos are password-protected. The password can be found in the pattern’s PDF and must be entered in ALL CAPS.
Photos
Tétra – Faux leather & leopard cork
Tétra with Body version 2 + Flap version 5.
Flap attached with snaps.
- Fabric #1: Vinyl Mora fève Criollo.
- Fabric #2: Vinyl Vérone mustard.
- Fabric #3 – Flap: Vinyl Bollywood Wave silver.
- Fabric #4 – Flap: Luxury cork Animal skin style.
- Lining: Cotton Soleil Levant navy.
- Foam added to piece F as instructed in the pattern.
- Brown zippers.






Tétra – Faux leather, corduroy and floral jacquard
Tétra with Body version 1 + Flap version 1.
Flap attached with hook-and-loop tape.
- Fabric #1: Vinyl Mora fève Criollo.
- Fabric #2: Corduroy Velvy teal.
- Fabric #3 – Flap: Jacquard Opium blue.
- Fabric #4 – Flap: Faux leather Grenade brown.
- Lining: Cotton Elvira blue.
- Foam added to piece F as instructed in the pattern.
- Brown zippers.






A few of your Tétra bags
Here are the latest makes sewn from the Tétra bag pattern.
See more on Pinterest here.
Thanks
Huge thanks to the Dream Team of testers who sewed the 4-in-1 Tétra bags to check the pattern and instructions before the official release!
Thanks to Alexandra By Eskela, Aline L’Alisière, Annie Valencroix, Camille Camille M’craft, Dado Dado Créa, Evelyne l’Atelier d’Eve, Hélène Lamain Hélène, Kiki Les ateliers de Kiki, Marion Mes CreAJe, Nicole L’atelier d’Au, O’Kryn O’Kryn Prod, Rozenn Petit monde de Rozenn, Sophie Epik, and Laurence & Anne La Mercerie des Créateurs.
Thank you to Maria aka Velosews for proofreading the English version of the instructions.
Thank you to Sandra for being the Tétra model.
Get Tétra, the clever 4-in-1 bag pattern
You can purchase it in the Shop.
The list of required supplies and fabric measurements is provided there.
The pattern is available in downloadable PDF only. Learn more.