Mouse&Hatter Designs

Mouse&Hatter Designs A children’s clothing line by Stéfanie Latreille -- ReRooted Living Studio

Bilingual service for clients in Ottawa–Outaouais.

Car seat poncho pre-orders are officially OPEN! Cold weather is coming, and keeping little ones warm in the car can be t...
08/19/2026

Car seat poncho pre-orders are officially OPEN!

Cold weather is coming, and keeping little ones warm in the car can be tricky. Bulky winter coats and snowsuits can make it harder to get a properly snug car seat harness — which is exactly why car seat ponchos are such a practical option.

The harness is buckled under the poncho, close to your child, while the poncho sits comfortably over top to keep them warm. No bulky layers underneath the straps, and no wrestling a snowsuit on and off every time you get in and out of the car.

Mouse&Hatter Designs car seat ponchos are handmade, cozy and practical for our Canadian fall and winter weather.

Handmade to order
Easy on and off
Warm without the bulk under the harness
Perfect for the car, errands and everyday wear

Pre-orders are now open for the upcoming season.

Message me for available fabrics, sizing and ordering details.

Always follow your car seat manufacturer’s instructions for proper harness fit and use.



Les précommandes de ponchos pour siège d’auto sont officiellement OUVERTES!

Avec le froid qui approche, garder les petits bien au chaud dans la voiture peut vite devenir compliqué. Les manteaux d’hiver épais et les habits de neige peuvent rendre plus difficile l’ajustement adéquat du harnais — c’est justement ce qui rend le poncho pour siège d’auto si pratique.

Le harnais s’attache sous le poncho, bien ajusté contre l’enfant, tandis que le poncho retombe par-dessus pour le garder au chaud. Pas de couche épaisse sous les sangles, et pas besoin d’enlever et remettre un habit de neige chaque fois qu’on monte ou descend de la voiture.

Les ponchos pour siège d’auto Mouse&Hatter Designs sont faits à la main, chauds et pratiques pour nos automnes et hivers canadiens.

Faits à la main sur commande
Faciles à enfiler et à retirer
Chauds, sans épaisseur sous le harnais
Parfaits pour la voiture, les sorties et le quotidien

Les précommandes sont maintenant ouvertes pour la saison à venir.

Écrivez-moi pour connaître les tissus disponibles, les tailles et les détails pour commander.

Veuillez toujours suivre les instructions du fabricant de votre siège d’auto pour l’ajustement et l’utilisation.

Well it's been awhile… Mouse&Hatter Designs is back!Mouse&Hatter began more than ten years ago with handmade hybrid clot...
07/11/2026

Well it's been awhile… Mouse&Hatter Designs is back!

Mouse&Hatter began more than ten years ago with handmade hybrid cloth diapers, children’s clothing, grow-with-me pieces, car-seat ponchos and all kinds of colourful custom creations.

Eventually, life became busy, sewing took a back seat, and the business became very quiet.

But I’ve dusted off the machines and decided it was time to begin again—this time with a little more to offer.

I’m officially accepting alteration and custom-sewing requests. Based in the Chelsea and the Ottawa–Gatineau area but shipping available throughout Canada. Send me a message to discuss.

Thank you to everyone who supported Mouse&Hatter in its earlier years. It means so much to be able to bring it back.

And to anyone new here—welcome down the rabbit hole!?! 🐭🎩

Nice and cozy walk in a  poncho!
07/10/2026

Nice and cozy walk in a poncho!

















A custom sibling set in action!😍
07/10/2026

A custom sibling set in action!
😍



















Keeping warm on a chilly Easter day in her Mouse&Hatter Designs poncho.
07/10/2026

Keeping warm on a chilly Easter day in her Mouse&Hatter Designs poncho.


















   ()・・・Grow pants make a fun, practical Easter or birthday gift. Fits from 6m to 3T so when your little one has a growt...
07/10/2026

()
・・・
Grow pants make a fun, practical Easter or birthday gift. Fits from 6m to 3T so when your little one has a growth spurt, just roll down the cuffs! Call us at 705-325-0506 to order.

Nice and bright so close to spring!!!!
07/10/2026

Nice and bright so close to spring!!!!


















Grow-with-me pants just last and last!!!6m-3y, 3-6y let them grow with your child rather than them grow out of them with...
07/10/2026

Grow-with-me pants just last and last!!!
6m-3y, 3-6y let them grow with your child rather than them grow out of them within a few wears.

.chippy ()
・・・
My little hunk

These two... Just😍😍😍
07/10/2026

These two... Just😍😍😍





















The magic reflected in their eyes...Hope everyone had a very Merry Christmas!!!                                         ...
07/10/2026

The magic reflected in their eyes...
Hope everyone had a very Merry Christmas!!!




















Adresse

Chelsea
Old Chelsea, QC
J9B1N2

Heures d'ouverture

Lundi 9am - 6pm
Mardi 9am - 6pm
Mercredi 9am - 6pm
Jeudi 9am - 6pm
Vendredi 9am - 6pm
Samedi 9am - 6pm

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