We have researched Breathable Patio Mats online and have found the mats on this site to be good quality at a reasonable price, some come with a carrying bag. We have bought several mats from this site and have not been disappointed. We have a 16' mat for under the awning and a 12' mat to go under our dogs Exercise pen. We rinse them with the hose and they dry quickly.
Since they are breathable, they won't damage the grass like indoor/out carpet. Many campgrounds do not allow the indoor/outdoor carpet anymore, only breathable for this reason.
RV Mat | eBay