Most artificial grasses have a layer underneath called infill, which is just as essential as the turf itself. It comes in two, are the crumb rubber and silica granules or sand. Both are excellent features, but most pet owners prefer using silica granules. It is because this type is more natural and closer to the natural setup of real ferns. Moreover, it is more durable compared to crumb rubbers. Silica granules are excellent for playgrounds and athletic fields because they can also withstand more foot traffic. It also contains antimicrobial coatings that prevent the spread of bacteria from the wastes of your pets. Finally, you would love that this type of infill can cool down artificial grass during hot temperatures. This feature is essential during extreme weather or seasons.