Ecomm Wizards
Drinkware & LifestyleHeadless DevelopmentCommerce LayerCustom Frontend

Chilly's Headless Commerce Case Study

How Chilly's, the British reusable bottle brand, moved off a theme and rebuilt its store headless on Commerce Layer in 10 weeks. A custom frontend gave the brand personalised pages no theme could offer, loaded 42% faster, lifted conversion rate 28%, and cut running costs by 31%.

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Three Chilly's reusable bottles in orange, navy and yellow retro prints beside the Chilly's logo
Key Results
42%Faster Load TimeLoad Time
-31%Lower Running CostsRunning Costs
+28%Higher Conversion RateConversion
+19%Higher AOVAOV

Our customers say

Excellent
Lighthouse performance score 96/100
Mobile performance score 94/100
LCP improved by 38%
CLS of 0.03
Page load time 1.8 seconds
8 apps removed
12 custom page templates
6 third-party integrations
45+ product pages optimised
Built in 10 weeks
The Challenge

A Design-Led Brand Boxed In by a Theme

Chilly's is a British brand built on design. Its reusable bottles, cups, and food pots come in a constantly changing range of colours, prints, and limited editions, and the brand experience matters as much as the product.

The store couldn't keep up. A theme decides what a page is allowed to look like, so every new idea ran into the same walls: layouts that couldn't be changed, personalised pages that couldn't be built, and workarounds that added cost every time the team pushed past what the template allowed. Chilly's needed a store shaped around the brand, not a brand squeezed into a store.

Our Approach

Headless, Built Around the Brand.

01.

Headless Architecture on Commerce Layer

We separated the commerce engine from the storefront. Commerce Layer runs products, pricing, carts, and checkout through its API, so the front end is free to look and behave however the brand needs, without a theme deciding what is possible. Six third-party integrations were connected to the new stack.

02.

Custom Frontend Built for Speed

Every page was designed and built from scratch around Chilly's design language, with performance built in from the start. Pages now load in 1.8 seconds, the storefront scores 96/100 on Lighthouse and 94/100 on mobile, and LCP improved by 38%.

03.

12 Custom and Personalised Page Templates

With the storefront under full control, we built 12 custom page templates that a theme simply cannot produce, and optimised more than 45 product pages. Collections, campaigns, and product stories each get a page made for them, not a reskinned template.

04.

A Leaner, Cheaper Stack

Going headless removed the workarounds the old setup depended on. We removed 8 apps that were doing jobs the platform should do, and running costs came down 31%, all delivered in a 10-week build.

The Work

Inside the Chilly's Build

A headless storefront on Commerce Layer, built from scratch.

Hand holding a dark green Chilly's bottle over open water from a boat
Lilac Chilly's bottle with a flip-top lid carried on a city street
Woman holding a mint Chilly's Series 2 bottle in a black puffer jacket
Pink Chilly's bottle clipped to a bag strap

The Results

Chilly's now runs on a headless stack with Commerce Layer handling the commerce and a custom frontend handling everything the customer sees. The storefront loads 42% faster, conversion rate is up 28%, and average order value is up 19%. With 8 unnecessary apps removed, running costs are down 31%.

42%

Faster Storefront Loading

28%

Higher Conversion Rate

8

Unnecessary Apps Removed

31%

Lower Running Costs

Lighthouse performance score 96/100
Mobile performance score 94/100
LCP improved by 38%
CLS of 0.03
Page load time 1.8 seconds
8 apps removed
12 custom page templates
6 third-party integrations
45+ product pages optimised
Built in 10 weeks
Lighthouse performance score 96/100
Mobile performance score 94/100
LCP improved by 38%
CLS of 0.03
Page load time 1.8 seconds
8 apps removed
12 custom page templates
6 third-party integrations
45+ product pages optimised
Built in 10 weeks

“The team at Ecomm Wizards understood what we wanted to achieve with Chilly's and translated that into a storefront that feels much closer to our brand. Moving to a headless setup on Commerce Layer gave us greater flexibility over the design, customer experience, and how we manage the store. The process was well handled, and we're pleased with the result.”

James Butterfield

James Butterfield

Founder, Chilly's Bottles

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