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Horse rugs are a Perplexing
Thing for many riders.  Some riders do not feel the necessity to use them and
consider them an unnecessary accessory, while some cannot imagine functioning
without them.  What is the Reality?  In case you decide to use a carpet, which would be
acceptable for your horse? 

It is true that in their
Natural habitat, horses do just fine with no conveniences as carpets.  However,
we must note that horses functioning in horse riding do not possess the exact same functioning conditions since the horses residing in their natural habitat.  To start with, horses training below the saddle are often shaven, which damages
their natural protective layer against low temperatures.  Most time when it is cold outside, these horses spend inside, where they are not subject to reduced temperatures.  The matter of a different diet is crucial here.  This is why
we cannot expect them to possess the immunity that their free brothers possess.  While
changing the horses' habits and environment, we need to provide them with
protection against the negative ramifications of e.g. weather.  For this very reason we
have various kinds of rugs.  Which kind would be most useful for your horse and
when to use it?  We will try to explain that. 

In stores it is possible to encounter these kinds of carpets:

1. Coaching —  this type of carpet is set on together with a
       saddle.  It will be ideal for colder days.  We ought to mention that
       training together should not be too exhausting, because your horse could have difficulty with losing heat surplus from the body. 
2. Dry — usually made of fleece another material with moisture-absorbing properties.  This sort of carpets is usually
       used after instruction so as to dry the horse.  In stores, you can locate them as
       fleece rugs.    They
       ought to protect the horse from cooling too much, but in precisely the exact same time they
       do not block air circulation, so the horse does not sweat.  To be used in stalls.    It will protect
       your horse from the wind and light rain.  Made of materials easy to wash.    Mostly they are made to be as watertight as possible. 
3. Fly — used to protect the horse from insects.
         Normally made of mesh material.  This kind of a carpet is super helpful in summer time, in which horses are particularly susceptible to insects' bites of all
       kinds. 
4. Winter —
       carpets using cushioning.  To be used on a paddock
       or in a non-heated secure.  Usually it is possible to pick from a couple
       thickness of cushioning for one model. 
5. Shipping — to be used to safeguard the horse
       during transportation. 

Another thing is to adjust the
Appropriate length.  Namely, the way to select proper dimensions for your own horse.  Particular manufacturers have different size markings.  It is possible to locate letter sizes (S, M, L etc.),
centimeters, or inches.  There's a principle where for components of duration is the length
of the carpet on the horse's back.  This value is crucial for deciding on the right
size.  E.g. a well-known manufacturer of equestrian equipment Eskadron claims S = 125 cm, M = 135 cm, L = 145 cm, etc..  Obviously, it is best when you can
take a look at a graph when all the rug's measurements are mentioned.  Then you
can be confident a specified size will suit your horse correctly. 

As you can
See, by employing good rug you are able to help your horse in dealing with unpleasant
Weather, insects, or shield him during transportation.  Additionally, You should not overdo
The whole rug thing.  If you use them when they Aren't required, you can disturb
However, you need to remember
That without a rug when the weather is poor, you endanger your horse e.g. to a
Higher risk of getting cold.

 
https://kavalero.com/horse-rug-how-to-choose-the-proper-one/