Best Fit ‑ Size Charts

Best Fit ‑ Size Charts

by Relentless Apps

Easily create unlimited size charts & size guides

5.0 of 5 stars(8 reviews)

Unlimited Size Chart

Create unlimited sizing charts & size guides. Choose which products or collections you want your size charts to appear in.

Beautiful Size Charts

Create beautiful easy to use sizing charts & size guides for clothes sizes, apparel sizes, shoe sizes, or product dimensions.

Custom Size Chart/ Size guides

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

About Best Fit ‑ Size Charts

Why you need size charts / size guides

Did you know the majority of returns for eCommerce apparel and sized items are due to the customer not being satisfied with the fit or sizing?

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 Best Fit - Size Charts comes in.

We developed Best Fit - Size Charts so you can create beautiful easy to use sizing charts & size guides 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 & size guides?

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

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

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

Easily create size charting & size guides

  • Add custom titles, descriptions, and images.
  • Create custom size charts / size guides.
  • Select which products or product collections you want them to appear in.
  • A link to your size chart / size guide 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/ size guides

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 Sizing Charts/ Size Guides

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

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


  • Clothes Size Charts
  • Shirt Size Charts
  • Hat Size Charts
  • Bra Size Charts
  • Apparel Size Charts
  • Shoe Size Charts
  • Ring, Bracelet, Anklet, Necklace Size Charts
  • Accessory Size Charts
  • Product Dimensions

See the app in action

Explore how the app works in an example store.

View example store

Media gallery



Basic Plan


  • One size chart/ size guide

  • Advanced layout

  • Size chart icons

Premium Plan


  • 14 day free trial / Free for Shopify Development Stores

  • Unlimited size charts/ size guide

  • Advanced layout

  • Size chart icons

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

Overall rating
5.0 of 5 stars
Based on 8 reviews

  • 5 of 5 stars
    100% of ratings are 5 stars
  • 4 of 5 stars
    0% of ratings are 4 stars
  • 3 of 5 stars
    0% of ratings are 3 stars
  • 2 of 5 stars
    0% of ratings are 2 stars
  • 1 of 5 stars
    0% of ratings are 1 stars

Most recent reviews


This app installed easily and we were able to create specific size charts for each and every style we carry. We absolutely love the customer service too. They helped with some simple customizations and answered every question I had within minutes. HIGHLY RECOMMENDED.

Meraki Cole Company

I just recently downloaded the app and currently have one chart (free program) being utilized. The app was easy to download and understand with quick implementation. Very pleased and would recommend at this point.

Best app to use when it comes to sizing charts. the developers were extremely helpfull and attentive. i will surely keep using this for my future clothing stores!
5/5 will download again