I ordered the rear passenger mat from CarCoverPlanet since they sell the rear mat seperately. I am not nearly as knowlegable on carpet weights and such as some on this board, but the mat seems to be of high quality. The color is not an exact match to the original Tesla mats in some lights, but it looks pretty good in the car. It is formed to fit the spaces behind the front seats, it's a tight well matched fit. Attached are photos of the rear mat next to the original Tesla delivered front mats.