To safely take an indoor cat outside, it must be trained to walk on a harness. [1] Introduce the harness by playing with the kitten while wearing it to build positive associations. [2] When applying the harness, loosen straps and put the head through first before tightening for a comfortable fit. [3] Start walking sessions inside to get the cat comfortable walking in the harness before attempting outdoor walks, where it will be frightened and want to stay close initially during training.

1. How to Harness Train Your Cat
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2. The Debate
The constant debate among cat owners consists of whether it
is safe or not for your cat to be outside without supervision.
Letting a cat roam free outdoors could be dangerous in a rural
or city atmosphere. Your cat’s ninth life may be taken by
anything from a wild animal to an unsuspecting vehicle. One
way to ensure your kitten’s safety is to train it as an indoor cat
but, introduce it to walking and playing outside on a harness.
In order to complete this training process you will need to
purchase an H-type harness that you will be introducing to
your feline friend as a kitten. Remember, as your kitten grows
up, it is important that the harness ‘grows’ with it. PetSafe.net

3. Introducing the Harness
Before you consider bringing your kitten outside, you will need to get it accustomed to the harness. If you do
not make your cat feel comfortable in the harness it will either freeze up or go wild trying to escape.
The best way to make your cat feel comfortable in its harness is to help it associate the harness with good
feelings. This is done by playing with your kitten, as well as petting it. Once your kitten is happy, it is time to
apply the harness.
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4. Applying the Harness
To apply a H-type harness, you will need to remove the security
clasps and loosen the straps. This step will make it a much easier
and less stressful process for both you and your cat. First, you
must put your kittens head through the designated hole. You will
then need to re-clip the security clasps and tighten the straps to
be sure your kitten will not be running away. It is important to
still leave enough room for the kitten to move about as usual, so
sliding your finger between the harness and the kitten is key.

5. Beginning to Walk
At this point, your kitten is securely in its harness
and is ready to begin walking. Although, just
because your kitten is secure, does not mean that
it still feels comfortable after all of the struggle.
Prior to taking it outside, you will want to
continue giving your kitten the affection it needs
to feel comfortable in its harness. You need to
play with your kitten while its in it’s harness
within your living space. Once your cat seems to
walk around comfortably, you may now attempt
to take it outside.

6. Taking an Indoor Cat Out
Now that you are ready to take your cat outside, there are some new elements to factor in. If
you do not have a yard, you may have to carry your cat to a quiet park where you can then
begin training it to walk outdoors. The outdoors is a new and foreign place to your cat, so you
may need to spend some time helping it readjust and feel comfortable once again. Once you
step away from your cat, you can use the leash to distance yourselves while staying in control
of its safety. Naturally, your cat will become frightened and instinctually gravitate towards your
feet. You may use this to your advantage while training your cat; begin to walk backwards
away from your cat. This task will train it to want to follow its owner/walker.
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7. Trials and Errors
The first few times a person walks their cat, it will
surely be awkward. Training a cat to walk on a
harness can be a long process for both the cat and
the owner. Over time, both you and your feline friend
will begin to move more freely and harmoniously
together. Again, this process can take months but,
harness training your cat will benefit you by ensuring
your cats safety, as well as expanding its life beyond
the walls of your home.