*** Update after 1 season
Definitely not an outdoor rug. The elements simply made these rugs fall apart. At first they started fraying at the ends, then the centers, then we just found them in shards. If you're looking for indoor, sure, but don't use these outdoors. They also absorb a massive amount of water, so hauling them to the dump took two trips.

*** Original review
Bought three of these for our outdoor deck. We have composite decking, and although it's low maintenance (just needs pressure washing), it can get REALLY hot in the summer, even with shoes on. These rugs have done a great job of keeping it cool. They don't retain the heat, they dry relatively fast after raining, and they're fairly durable. I've also noticed that spills on them can just be cleaned up by dumping more water on them to dissipate the liquid. A little expensive, but totally worth it.