Best Fit ‑ Global Size Charts

Best Fit ‑ Global Size Charts

by Relentless Apps

Create multiple global size chart popups for all your products

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Global Size Charts

Create multiple global size charts. Choose which products or collections you want your size charts to appear in.

Beautiful & User Friendly

Create beautiful easy to use size charts that make you look professional.


Create custom size charts and add text and images to make it look how you want.

About Best Fit ‑ Global Size Charts

Did you know the majority of returns for e-commerce apparel and sized items are due to the customer not being satisfied with the fit or size?

High return rates resulting in lost revenue can be traced directly to sizing issues. Uncertainty about the fit or size of a product is why many would-be online customers opt to drive to the store for an item before purchasing.

That's where we come in.

We developed Best Fit so you can create beautiful easy to use size charts for all your products.

This gives your customers the confidence you need to make a sale, and reduce your lost revenue on returns.

Do you want an easy solution to handle all your size charts?

Do you have multiple products that need a different size chart for each?

Do you just need a better way to display your size charts?

If you answered yes to any of these questions Best Fit - Global Size charts is your best solution.

Easily create size charts

  • Add custom titles, descriptions, and images.
  • Create custom size charts.
  • Select which products or product collections you want them to appear in.
  • A link to your size chart will be displayed in the correct product.

Easy to Customize

We make it easy to add all the information you need on your size charts.

No Coding Required.

Once you run our app the code gets automatically installed into your theme.

Easy peasy!

No need to input the code or contact customer service. It's already done.

Unlimited Size Charts

Instead of displaying every size chart and annoying your customer, our app displays only the size chart for the product they are looking at.

Choose what products or collections of products you want the size chart to show up in.

See the app in action

Explore how the app works in an example store.

View example store

Media gallery



Basic Plan


  • One size chart

  • Can be displayed on unlimited products

Premium Plan


  • Unlimited size charts

  • Can be displayed on unlimited products

* All charges are billed in USD. Recurring charges, including monthly or usage-based charges, are billed every 30 days.

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