Case Studies

AUR OCEÀ Converts 3.5× Better With Magic Fit in Fashion's Least Forgiving Category

6 min read

3.5× Conversion vs Size Chart
78% Size-Anxious Orders Using Magic Fit
+52% Repeat Purchase Rate

Observational cohorts on AUR OCEÀ's own shoppers, not a randomized test. Conversion compares sessions that used Magic Fit with sessions that used only the size chart, on the same products.

Brand
AUR OCEÀ
Category
Premium swim & resortwear (Australia)
Platform
Shopify
Challenge
Swimwear sits close to the body and most shoppers are buying the brand for the first time, so the size has to be right on the first order
Timeline
Conversion: 14 Jul – 4 Oct 2026 · Repeat purchase: Apr – Oct 2026

AUR OCEÀ is an Aussie swim and resortwear label that describes its approach to swimwear as treating it like shapewear: where fit carries the garment.

That’s exactly what makes it hard to buy online. A bikini top that’s a size out doesn’t forgive, it simply doesn’t work.

Compounding the broader swim category challenges, most shoppers landing on the site have never bought from the brand before. So choosing their size is the moment a first-time shopper decides whether to trust the label or not.

Two Ways to Check a Size

Product pages at AUR OCEÀ offer two kinds of fit help. Shoppers pick freely between them, so the store’s own traffic tells us which one they reach for and how each one ends:

  1. Magic Fit asks for height, weight, age and bra size, and returns a recommended size in just 2 clicks.
  2. A style-based size chart, built from the same garment measurements, for shoppers who’d rather read the numbers themselves.

AUR OCEÀ's Valen Balconette Bikini Top product page, with Magic Fit's Find My Size link beside the Size Chart link above the size buttons

Find My Size sits next to the size chart on AUR OCEÀ’s product pages.

Across 12 weeks, 48% of AUR OCEÀ’s orders came from shoppers who opened one or both. We call those size-anxious orders, and 78% of those orders went through Magic Fit.

The biggest group used both, and that’s the combination that converts best: shoppers get a Magic Fit size recommendation, then double-check it against the chart.

How AUR OCEÀ's size-anxious orders found their size

AUR OCEÀ orders, 14 Jul – 4 Oct 2026

How AUR OCEÀ's size-anxious orders found their size
Label Value
Magic Fit only 35%
Size chart only 22.1%
Both 42.8%

Simplicity Lifts Conversion 248%

The comparison that matters is between shoppers who were all looking for fit help on the same products. A session that used Magic Fit ended in an order 16.7% of the time. A session that used only the size chart ended in an order 4.8% of the time, so Magic Fit converted at 3.5× the rate.

The gap holds when you pull the two Magic Fit groups apart.

AUR OCEÀ's Valen Balconette Bikini Top product page with Magic Fit open beside it, asking for height in centimetres, weight in kilograms, age and an AU bra size

Magic Fit opens beside the product and asks for four things a shopper already knows.

Revenue per session follows conversion: about A$67 a session with Magic Fit against A$19 with the size chart alone.

Sessions that used Magic Fit on its own converted at 12.7%, more than 2.5× the size-chart-only rate. Sessions that used Magic Fit and then checked the size chart converted at 22.6%, more than 4.5×!

Share of fit-help sessions that ended in an order

AUR OCEÀ sessions, 14 Jul – 4 Oct 2026

Share of fit-help sessions that ended in an order
Label Value
Size chart only 4.8%
Magic Fit only 12.7%
Magic Fit and size chart 22.6%

First Orders. And Second Ones.

Magic Fit shows up where AUR OCEÀ needs it most. Over the six months to October, 83% of orders that used Magic Fit were a customer’s first order with the brand, against 73% of orders that didn’t.

What happens next matters more. We followed AUR OCEÀ’s first-time customers for 60 days after their first order. Shoppers whose first order used Magic Fit came back and bought again 16.6% of the time. Shoppers whose first order either guessed their size or used the size chart came back only 10.9% of the time. First-time customers who sized with Magic Fit were 52% more likely to buy again within 60 days (p = 0.014).

First-time customers who bought again within 60 days

AUR OCEÀ first-time online customers, first orders Apr – Aug 2026

First-time customers who bought again within 60 days
Label Value
First order used Magic Fit 16.6%
First order without Magic Fit 10.9%

In swim and resortwear, where the first piece has to fit before a customer trusts the brand with a second, it’s the number we’d watch most closely.

What These Numbers Are

These are cohort analyses, not a controlled A/B test. Shoppers chose which tool to use, and the ones who chose Magic Fit may differ in ways the data can’t see. We’ve kept the comparison as fair as the store allows: every conversion figure compares shoppers who were all looking for fit help, on the same products, over the same weeks.

The Point

At AUR OCEÀ, nearly four in five size-anxious orders go through Magic Fit. Those shoppers convert at 3.5× the rate of size-chart-only shoppers, and the first-time customers among them are 52% more likely to buy a second time.

If you’d like to know how much of that is caused by Magic Fit on your own store, we can measure it directly via an A/B test where we hide Magic Fit from half your shoppers during your trial and compare the results.

Methodology: Conversion, revenue per session and tool-choice shares are observational cohorts from AUR OCEÀ’s Shopify storefront, 14 July – 4 October 2026, where a session’s cohort is the fit help it used (Magic Fit, the size chart, or both) and a size-anxious order is one placed after using either. Repeat purchase compares first-time online customers from April – August 2026 by whether their first order used Magic Fit, counting a second order within 60 days, with a two-sided test of the difference.

About the brand: AUR OCEÀ is an Australian swim and resortwear label founded by Kate Davis after more than a decade leading another swim brand. The range runs from bikini separates and one-pieces to silk slip dresses, shirts and wide-leg pants across an extended size curve up to AU 20.


Want to see what size-anxious shoppers do on your store? Get in touch — we’ll run the holdout with you during your trial.

Further reading

Keep reading.