Horse trailers are other specialized vehicles that can be protected by a tarp for transportation. While other types of trailer covers, like an RV cover, are made of polyethylene, horse trailer covers vary, especially as the cover should be able to be used in the rain with a horse inside. The material needs to be breathable enough for a horse and, as a result, a horse trailer cover is made of polypropylene, much like a mesh tarp. Horse trailer tarps, which are specifically fit for a horse trailer instead of one-size-fits-all, come in a variety of sizes to fit your horse trailer and each tarp is composed of a triple-layer top and polypropylene side panels to create a tarp cover that is fully breathable and with all typical tarp properties, including waterproof and UV resistant. The breathable aspect of a horse tarp cover is also important for the buildup of moisture inside of a horse trailer. The breathable nature of the polypropylene tarp allows moisture to evaporate from the trailer to create a dry and breathable environment for a horse. Other additional properties a horse trailer tarp cover has includes reinforced rear corners, so that the tarp stays in place and doesn't shift during transport, and tear resistant material.