Hello
If you want to hide breadcrumbs for product page you may add this code into the custom.css: .single-product .page-heading {display:none} and for all pages: .page-heading {display:none}
.single-product .page-heading {display:none}
.page-heading {display:none}
Here is a video tutorial how to create custom.css: https://www.youtube.com/watch?v=Qok2zRedRMY&feature=youtu.be.
With best regards Brian Johnson
