A Zone is an area on a Page, Product, Collection, or Blog Post template, where custom content can be populated using Sections with Advanced ThemeBuilder. You can think of it as a frame that is as wide as the container area of your site, that can stretch limitlessly vertically to accommodate any number of Sections. Zones may be automatically added to the top and bottom of any template file with Advanced ThemeBuilder, and for those willing to edit theme files, you can also add more zones.