Vellum theme docs

Product templates

Product templates share the Product section and adjust blocks/settings for the type of product being sold.

Default

product.json for standard products with media, options, trust chips, recommendations, and app blocks.

Personalised

product.personalised.json adds line-item personalisation fields and required custom inputs before cart.

Charm

product.charm.json keeps the accessory buying path lightweight.

Strap

product.strap.json is tuned for strap/accessory products that do not need phone-model confirmation.

Merchant setup

Assign the correct template per product type in Shopify admin.
For model-dependent products, keep model option names consistent with the model selector labels.
For personalised products, test required line-item fields before publishing.
Install review, subscription, or upsell apps into the app block slots when needed.