summer dresses
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Bundle & save
The more you keep, the more you save
Discounts apply automatically at checkout — no code needed.
A few of our favourite corners
Letters from our customers
I ordered one dress to try, and it felt like something my mother would have kept for thirty years. I've since ordered two more.
I bought it thinking it would be an occasional dress. I’ve already worn it more times than I can count.
I wore mine for a morning in Lunenburg and kept it on for the entire day. It felt right everywhere we went.
I’ve worn mine in the garden, out with the grandchildren, and to a gallery. It works for all of it.
Arrived and the size is perfect. I can fit in all my needed stuff and still have enough space for a daily accessories.
Beautifully made, honest sizing. You can tell this is a brand run by someone who cares.
I stopped dressing for trends a while ago. These are the first clothes in years that feel like they were made for that decision.
Get Ready For The Beach
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Sandals for the Shoreline
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Loved across Canada
Trusted by thousands of women
Over 13,000 women across Canada trust Antonia Sinclair for dresses that pair timeless elegance with everyday comfort. Every piece is hand-selected to help you feel put-together and confident — whether it's a harbour evening, a summer afternoon, or an ordinary day made a little more beautiful.
BAGS collection
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Free delivery
Free shipping on every order across Canada, with no minimums.
30-day money-back guarantee
Not in love? Return any piece within 30 days for a full refund.
Customer support
Real people, ready to help — reach us any day and we'll take care of you.
Contact us
Frequently asked questions
Once your order is confirmed, you'll receive an email with your order number and tracking link. You can follow your parcel every step of the way from our studio to your door.
You can request a return within 30 days of receiving your order. Items should be unworn and in their original condition with tags attached. Once your return arrives back with us, we'll refund your original payment method.
Each product page includes fit notes written by Antonia herself — whether a piece runs true to size, generous, or fitted. If you're ever between sizes, we're happy to advise; just write to us.
Email us any time at hello@antoniasinclair.com or use the contact form. The studio answers Monday to Saturday and aims to reply within 48 hours.
