I have the carpet floor mat but wanted something that’s waterproof and easy to clean. Recommend this pet cargo liner. It’s a bit big but I just fold it down. It’s wide enough to protect the sides of the wall of the vehicle too.

https://www.amazon.com/dp/B0B2D66HHY/ref=cm_sw_r_api_i_EMAM9V5S1AWYS1ETS3K1_0?_encoding=UTF8&psc=1