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What Is 3 In 1 Jacket System – Find Out Here


If you have ever searched Amazon for insulated jackets most certainly you have seen that some of them have so called 3 in 1 feature. So what is 3 in 1 jacket? Here I explain terminology and give a few nice examples of such jackets.

So what is a 3 in 1 jacket?

Columbia Men's Eager Air Interchange 3-in-1 Jacket.

In my view, this is the best way to go through all seasons with a single piece of garment. In short, this is an insulated jacket of a special kind. This means that you have the following:

  • An external waterproof or water-resistant shell.
  • An internal fleece jacket.
  • They can be used together as a single jacket.
  • Both elements in this type of garment can also be used separately. They are both fully functional. This means that each of them has separate zippers, pockets, drawstrings on the hem.

When you use the two layers together, you can use them in the following ways:

  • Zipped together as a single jacket. In this case, they behave as a single jacket attached to each other: i) through a zipper on both sides, ii) through snap buttons inside the sleeve of the shell jacket and on the sleeve of the fleece jacket, and iii) through similar snap buttons in the collar behind the head.
  • Not-zipped together. In this case, you have two jackets on top of each other, bot zipped separately.

Terminology

If you search for such items, note that there are several expressions used for them:

  • 3-in-1 jackets,
  • 3-in-1 jacket systems,
  • interchange jackets,
  • interchangeable jackets.

What are benefits of having such a jacket?

The benefits should be obvious:

  • You have a waterproof protection due to the external shell.
  • You have insulation due to internal jacket.
  • You have wind protection by the action of both layers.

Dependent on the model of the jacket, the layer inside can be very thick or thin, it can be fleece or something else. Sometimes, the breathability of the fleece layer is not so great, so combined with the external shell which is normally breathable (but this may be limited), the feeling in such a jacket is not so great if you are sweating a lot.

Here is a short video where the person explains the meaning of the term 3-in-1, so please have a look:

How about the price

These jackets can be very expensive, see this Marmot Bastione jacket, this will depend on the brand and the quality of the materials of course. This is to expect, good waterproof and breathable rain shell jackets are expensive themselves. The range of prices of fleece jackets alone is really wide.

So when you combine both, with all functionality and benefits of such a combination, the price can be very high.

But see below a few nice and inexpensive examples of 3-in-1 jacket systems for men and for women, all of them with fully waterproof shells:



My own 3-in-1 jacket

I have always had at least one jackets of this type. Presently, I am using a quite old Eider Polartec 3-in-1 Gore Tex jacket with a very thick internal jacket, see the picture below. But I must say that most of the time I use only the external shell jacket because in Belgium we do not have strong winters, we do have a lot of rain though.

Only around Christmas time, I have them zipped together. In such a situation I have never used anything more under the jacket, except a polo shirt with short sleeves. This works nice even for temperatures -5 C to – 10 C; yes we do have such days here, but very rarely. This is how I usually go to the Alps as well.

So what I have here is the following. I have a nice and pleasant waterproof shell jacket with a hanging mesh to protect the membrane. It has 3 pockets (two zippered hand pockets and one hidden zippered pocket on the chest). So this is a great jacket to use on its own.

The internal jacket is also with two hand pockets. So this is a jacket for itself, and I use it that way when needed. When it is zippered to the external shell, then its hand pockets are not in use of course.

This was very expensive, 220 Euro on discount, probably 5-6 years ago, just to compare with the models given above.

My own Eider Polartec 3-in-1 external shell jacket.
My own Eider Polartec 3-in-1 external shell jacket.
My internal fleece jacket.
My internal fleece jacket.

Conclusion

I hope this text has been useful and you now have a more clear picture about what a 3-in-1 jacket is. This is something I have been using for many years now and I know it is a perfect system.

But indeed, in some situations, like in my own present case, the internal fleece jacket may be too bulky or too warm. No problem, you can put it aside and use some other piece of fleece instead, in combination with the outer jacket. In this case, they will not be zipped together as one single piece, but this not so important. This is an alternative which I have also been using, with the mentioned Eider jacket, and with some other rain shell jacket. See my page about equipment, many rain shell jackets are described there.

If you are in search for a 3-in-1 jacket for women, please see this text with 5 great models.

Thank you for reading. I shall be happy to have some comment from you. Thank you for reading.


Mountains for Everybody site is reader-supported. This means that some of the links in the text are affiliate links, and when you buy products through our links we may earn some small commission to keep running the site. Filed Under: Clothing Tagged With: 3 in 1 jacket, 3 in 1 jackets, interchange jackets, interchangeable jackets

Comments

  1. emmanuel says

    at

    Hi,

    Definitely looks amazing!

    They look like they are great and will be very useful to buy. I will look into them more towards the winter where I will be needing a jacket.

    This Is really a good investment to make because they look like they will last for a long time. I really like the design that they have.

    Thank you,

    Emmanuel

    Reply
    • Jovo says

      at

      Thank you Emmanuel, I hope you will, great that you like the concept. All the best.

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My photo on the summit of Jalovec.Hi everybody and welcome to my site which I nurture with love and passion. Here I describe my own climbs and give reviews of equipment. I hope you will enjoy it. More about the site and about me here.

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