R1S Rear cargo cover for dogs

Curious what everyone is using for hauling their dogs around in the back of the R1S. As recommended on another thread on the rivian forum, I am using this: https://www.amazon.com/dp/B01439XBKE?ref=ppx_yo2ov_dt_b_product_details&th=1. Size large fits nicely except it doesn't cover the 3rd row arm rests. As always, the products from Canvascovers are very nice, but the open seams just look like a haven for dirt and dog hair.