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Case Study

How We Converted and Integrated Custom Design & Functionality Into Shopify for a Women’s Innerwear Company

The Client

ChiChi Castelnango is a new startup producing custom designed women’s innerwear.

They came to us to develop a Shopify website which would allow them to sell their product online. However, their requirements came with a specific set of challenges in terms of customization and development.

The Challenge

The client provided us with the mockups of the website structure, layout, color combination, brand identity, and more… but there was a catch:

Since Shopify is a hosted solution, it isn’t enabled to undergo the kind of complete brand identity customization our client requested. So:

  • The client needed a very specific filter functionality, which Shopify didn’t offer.
  • We needed a way to maintain complete, custom brand identity even outside of Shopify’s base functionality.

The custom filter quickly emerged as our biggest challenge. Shopify simply didn’t offer that function, and we knew it would require some creativity make it work.

We had to manage expectations while figuring out the best way to move forward.

The Solution

At this phase of the project, we took on a consulting role and offered the client input in terms of functionality and custom theme implementation.

One of our best assets was our dedicated team of expert e-commerce developers who all had extensive experience in Shopify. We also knew to get an experienced project manager and team leader involved for the discussions.

To deliver and implement it into the Shopify platform, our team lead planned the entire implementation process. Over the course of our consultations, every possible outcome was documented thoroughly and each possibility analyzed. We selected the best solution keeping in mind all partial dependencies in other aspects of the project.

The biggest breakthrough came when found a paid Shopify application with the some, but not all, of the functionality the client requested in their filter. It would need some customization on our end, but we knew we could make it work.

So we set up a staging environment and integrated all the new functionality and modules onto the staging server. There, we designed a solution and suggested it to the client along with the screenshot and explanation on the staging server. The client went through and analyzed the functionality to make sure it was as they requested.

On the basis of a mutual agreement, after testing all modules and functionality thoroughly, we implemented the design and pushed it onto the live server.

  • UI/UX
  • Front-end Dev
  • Back-end Dev
  • SEO

It took 3 days to come up with a proper solution and around 2 weeks to implement the designed solution.

The results were exactly what the client needed.

First, we were able to make the the client understand that the Shopify has its own limitations and their requirements required workarounds. When we suggested the solution and demonstrated its viability, the client was happy.

Second, we successfully implemented the custom theme for the client’s brand identity. By merging the brand identity with the Shopify system, we empowered our client to stand out and tell their brand story more fully.

Third, we customized the paid Shopify application to fulfill our client’s specific needs. This made the entire experience much friendlier from an end-user point of view. Users are able to do a more specific search and filtering of products.

They also had this to say:

“Amazing work. CN knew exactly how to manage my expectations. Very professional and project management was very efficient and quick. I will work with CN again for sure!”

Real Google Reviews

Jonas Peeters

5/5 stars


Great experience working with the Capital Numbers team. They were extremely diligent, accessible and utmost professional in their work. They were worth every euro. We are happy with the results they showed us and also the solutions they come up with to satisfy our needs. I definitely recommend working with them. It is useful to have someone on your side who does have (although limited) knowledge of IT and web hosting.

Per Peterson

5/5 stars


We have found Capital Numbers extremely easy to work with as development partners. They have been great at spending the time on the front-end of projects to understand the full scope which is helpful during development to guide decision-making and potential trade-offs to deliver on time and within budget. They're effective at integrating technical solutions with creative work and we have had a great experience with their project management.

George Levy

5/5 stars


I have been a customer of Capital Numbers for many years and multiple projects across both all my personal websites, and multiple clients. They are my most trusted partner when it comes to any web and mobile development issues.

See all Reviews

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