An option set is a group of fields and a rule that decides which products show them: name it, add fields, choose the products, set it Active. Nine field types: text, long text, number, dropdown, radio buttons, checkboxes, a checkbox, a date, and a file upload stored by Shopify. Fields render inside your theme's own product form, required ones are checked before Add to cart and Buy it now, and every answer is saved on the order line as a named property. No theme code, no per-product setup.

• Option sets: fields plus a rule for specific products, collections or all.
• Nine field types: text, number, choices, checkboxes, date and file upload
• Fields render inside your theme's product form, in your theme's own style
• Every answer is saved on the order line as a named property
• Required fields are checked before Add to cart and Buy it now