TURNOUT OR STABLE BLANKET? There are two basic types of blankets; turnout and stable; depending on the environment that your horse lives in, one may be a better ‘fit’ than the other. The difference between them is whether they are waterproof or not. A turnout blanket is treated on the outer shell to be water proof and will keep your horse snug and dry in rainy or snowy conditions. The stable is, as its name implies, mainly for the stabled horse, so it is not water proof and will not prevent water in its various forms from soaking in and getting to your horse.