Cargo Cover / Liner Options for 3rd Row

[CleanE30]

Hi All, I have been searching all over and there doesn't seem to be a great solutions out there for a cargo cover that still allows to use the individual seats in the 3rd row. We have four kids and we use one of the seats while leaving the other one down for our large dog or luggage. Does anyone have any suggestions for cargo covers that are durable enough to get this done. The only thing that I have found so far is the following: https://www.canvasback.com/bmw-x5-ca...2008-2013.html Thanks!