https://www.deezee.com/product/invis-a-rack-cargo-management-system/

The Invis-A-Rack Cargo Management System allows you to have a functional ladder
rack that can be collapsed down into the bed rail casings when not in use.
Whether you have the need to haul the occasional load from the home improvement
store, or depend on a cargo system daily- you can trust the Invis-A-Rack by Dee
Zee to be up to the challenge.

Thanks to Shane Moreland.