Like Karl mentioned, an app is required to handle the custom data for this even if you are getting help from a Shopify Expert. For your specific use case, you can use Customer Field's in-app tools to set this up without a developer, though our team of Shopify Experts is happy to help if you need a more bespoke solution.
We also have many customers handling customer measurements. You may be interested to check out the Style Quiz on our demo store which saves customer measurements and other customer preferences to their customer profile.
Michael | Business Development @ Helium - Was my reply helpful? Click Like to let me know! - Was your question answered? Mark it as an Accepted Solution Helium builds apps that merchants depend on: Customer Fields app (since 2015) Meteor Mega Menu app (since 2014)