This thing is homemade and awesome. It’s super solid constructed from 3/4" MDF and provides an 'upper deck" with full storage beneath. I made it custom to fit my 2020 5th Gen 4Runner. It is covered with marine grade carpet, comes in two pieces and is super sturdy thanks to the turnbuckles that cinch it down to the stock cargo d-rings.
It goes all the way to right up behind the front seats, is high enough to tuck a full size cooler and all your camping gear beneath. Great dirt bag set up.
Sets up in about 10 minutes. Pretty dang sweet.