Significant Other
Established · $200–$400 · Adelaide, Australia
Resortwear dresses and satin separates with cutout details, Australian ease made for beach-to-bar arrivals.
Think: vacation mode, always on
The buy: the cutout satin dress
What to buy
the cutout satin dress
Categories
Occasions
Why Significant Other is worth it
Significant Other makes fluid, draped dresses with one clever detail each, the kind that work for a wedding, a holiday dinner or a night out.
The fabrics do most of the work: soft viscose, satin and georgette that drape close to the body, usually fully lined. Each dress carries one standout touch, a cape, a halter tie, a cut-out with hardware or a painterly print, and the cuts run from bias minis to long column gowns, so they read dressy without feeling stiff.
Significant Other is on sale now.~50% off
Up to 70% is the banner, 50% is the rack. Still deep enough on this many pieces, so scroll
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About Significant Other
Kathryn Forth and Julia Ritorto, the Adelaide duo behind Acler, launched Significant Other in 2019 as a second label for a slightly different customer.
Where Acler leans modern and sculpted, Significant Other started from Australia's beach-to-bar ease, resort dressing that carries from sunlight into the evening, and grew into dresses for weddings and events, designed in Adelaide.
- Founded
- 2019
- Founded by
- Julia Ritorto and Kathryn Forth
- Based in
- Adelaide, Australia
- Made in
- China
- Made of
- Mostly viscose and polyester, including satins, georgettes and stretch knits, often fully lined
- Shipping
- Free shipping to the US by UPS (7 to 10 business days), with duties covered by the brand and sales tax paid at checkout. Ships worldwide from Sydney by DHL, duty-paid, with costs shown at checkout..
- Where to buy
- Significant Other's own site · Our Significant Other picks
What shoppers say
From reviews and try-on videos, in our words.
- Fit
Sizing is Australian, and the models wear an AU 8, which is a US 4. Reviewers mostly find the dresses true to size, but fitted stretch minis can run small, and the brand says some styles stray from its chart.
- Fabric and care
Expect viscose, viscose-polyester satin, georgette and stretch knits, often fully lined. Care labels mostly say hand wash or dry clean.
- Shipping
Shipping to the US is free by UPS in 7 to 10 business days, and the brand covers duties, so only sales tax is added at checkout and nothing is due on delivery.
- Returns
US orders can be returned within 20 days of purchase, but you pay for the return label, which comes off the refund. Sale pieces get store credit only, final sale can't be returned, and there are no exchanges.
What Significant Other is made of
Polyester · Viscose · Cotton
- Natural
- 17%
- Plant-based
- 29%
- Synthetic
- 54%
Works most in: polyester, viscose and cotton
From the fabric listed on 516 pieces · 96% of the range lists it · Checked October 2026
How we read itSee more brands that work in polyester & nylon →
Significant Other in our edits
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Significant Other, answered
- What is Significant Other?
- Significant Other is an Australian label from Adelaide making draped, fluid dresses for events, weddings and holidays, plus tops, skirts and a small swim range.
- Is Significant Other a good brand?
- Yes. We like it for dresses that feel special without fuss: soft, draping fabrics, full linings and one standout detail per piece, from the founders of Acler.
- Who founded Significant Other?
- Julia Ritorto and Kathryn Forth, who also founded Acler, launched it in 2019.
- Where is Significant Other from?
- Adelaide, Australia, where it has its headquarters. Orders ship from Sydney.
- Does Significant Other run true to size?
- Mostly. It uses Australian sizing (an AU 8 is a US 4), reviewers mostly find it true to size, and fitted stretch minis can run small.
- Where can I buy Significant Other?
- On the brand's own site, or through our Significant Other picks.
- Does Significant Other ship to the US?
- Yes, free by UPS, with duties covered by the brand. Sales tax is added at checkout, so there is nothing to pay on delivery.
- What is Significant Other made of?
- Across the 516 Significant Other pieces we could read in October 2026, about 17% of the fabric is natural fibers, 29% plant-based fibers like viscose and 54% synthetic. The most common fabrics are polyester, viscose and cotton.
- Which brands are like Significant Other?
- If you like Significant Other, look at Faithfull the Brand, Tissimum, Asta Resort and Marfa Istanbul.