At this stage, our themes are only available in english. If you'd like to change the theme language, you will have to manually translate the content areas of the theme.
For more information, visit Shopify's official doc on translating themes.
Currently, there's no built-in solution for switching languages on Shopify stores. By default, stores can only use a single translation file at one time. To add the option to view store content in multiple languages requires a third party app or integration.
Check out our Shopify's App store for translating your store into multiple languages.