Upgrade sharepoint 2016 from 2010/2007 direct
Ability to upgrade to SharePoint 2016 from 2010/2007 direct (minimal for content db)
Alex Minor commented
You cant migrate directly to SharePoint 2016. So if you want to upgrade you must pass all relevant databases through SharePoint 2013 before you can upgrade them to SharePoint 2016.
Or use a third party SharePoint migration tools to migrate directly from SharePoint 2010 to SharePoint 2016, like LepideMigrator for Documents: https://www.lepide.com/lepidemigratordocuments/sharepoint-to-office-365-migration.html