Looking for a Simple Way to Grow Your Apparel Store Revenue?

Reduce returns up to 40% by upgrading your size charts with fit recommendations

The 1st Size Passport Network - makes choosing proper-fit online easy for your customers. More sales with fewer returns.

(5/5 from 600+ stores)


Save on return costs


Increase AOV


Grow customer LTV

Featured in:

on Shopify App Store

Sizify is the clothing fit solution for online boutiques, online creators and DTC brands

Add do cart

Increase revenue


Reduce returns


Customer satisfaction boosts LTV

size recommendations aftersize chart before

Getting started is easy


Create first size guide in under 5 minutes

Our step by step wizard makes setup simple.


1-click theme setup. No developer needed

Automatic integration for most themes. With additional customization options available.


Additional documentation & support.

Need added support? Checkout our help docs. Plus our support team is here to help

What are our customers saying?

"It is going great! People are using it. I forgot to add it to one particular product and had some one ask about the size guide so that’s what tip me off that it’s truly working. I love it!"

- Valerie Wellington

Owner, Lava Luxe

"We love the concept of Sizify it was a smooth process and made creating a size chart for our product pages easier."

- Chris Parks

CMO, Moto MP

"Adding it to my store was really easy! It was the missing piece to my product page. Thanks so much."

- Juliana May

CEO, Belle Bonjour

Your Shopify apparel store isn't complete
without fit-finder technology

Proud to be official partners