The Pin Theory · Fashion
How The Pin Theory grew AOV by 17% with full page bundles

Jure Reljanovic
22 Sep 2026 - 03 Mins read
+17%
Increase in average order value
4.5%
Bundle page conversion rate
About The Pin Theory
The Pin Theory is a UK fashion accessories brand with a simple promise: small accessories, big difference. They make waist pin adjusters, the little pins that tighten loose jeans, shorts and skirts in seconds without a trip to the tailor, and decorative button cover sets that change the look of a piece instantly.
With dozens of designs, from daisies and clovers to angel wings and crystal blooms, most customers don't want just one. They want a few to match different outfits. That makes bundles a natural fit for the store, and a big part of how they sell.
The challenge
Before NeatBundles, The Pin Theory sold their bundles with a product page bundling app. It worked, but the layout it allowed was cumbersome for what they needed. The bundle was squeezed into a standard product page, and customers had to work out how it all fit together before they could build a set.
What they wanted was the opposite: a page where a customer lands and instantly understands what to do. Pick the designs you like, add them to your bundle, check out. Nothing else in the way.
That meant a full page bundle, where the whole page is the bundle builder. When they looked at the apps that offered one, they hit a second problem. The options were expensive, and most of them charged steeply based on bundle sales, so the more bundles they sold, the more of every sale went to the app.
The solution
NeatBundles gave The Pin Theory the full page layout they were after, with the features they needed and at a price that made sense for their store.
Here is how their bundle page works:
- Every design on one page. Customers see the full range in a grid, choose a finish (black, silver, gold and more) from each card and tap to add it to their bundle.
- Clear volume pricing. Three sets take 25% off, four take 33% and six or more take 50%. The tiers sit right next to the bundle, so customers always know how close they are to the next discount.
- A live bundle summary. The sidebar lists every item with its quantity, updates the discount as the bundle fills up and shows the original and discounted price side by side.
- Straight to checkout. One "Go to cart" button, and the whole bundle lands in the cart at the right price.
The Pin Theory also helped shape NeatBundles itself. Working closely together, we built a lot of new features around what they needed for their store, and those features are now used by other merchants on NeatBundles as well.
The results
The simpler page paid off. Since switching to NeatBundles, The Pin Theory has seen:
- A 17% increase in average order value, as customers build bigger sets to reach the higher discount tiers.
- A 4.5% conversion rate on the bundle page, with visitors going from landing to a finished bundle without getting lost along the way.
In their own words, from their review on the Shopify App Store:
"I am incredibly happy with the app, great functionality and definitely helps to raise average basket values. Compared to other apps this one has the best price to value ratio by miles! And the developer guy is super friendly and has been adding more and more functions, listens to what businesses require. 100% recommend."

