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Introducing fabrics with Outlast for NASA. Cool in summer and warm in winter. Can be used for masks.

Hi.I am Yoshi from ApparelX department.

In this article, I’d like to write about the appeal and technology of Outlast, a material developed for NASA.

This fabric is currently attracting attention for mask production, and is attracting attention as a material for both summer and winter.

What is Outlast?

Outlast is a material developed for NASA in the United States.
It contains paraffin wax in tiny microcapsules of 2 to 30 microns in the fiber, which absorbs excess heat from the body and releases stored heat when it gets cold, and controls the temperature of the body to a comfortable level.

Paraffin wax can be used as a raw material for making candles and other familiar objects. In fact, however, it can also be used as a material for cooking sheets, waterproof sheets for building materials, and many other applications. The function of this is to absorb and dissipate heat. The function of this product is to absorb heat and dissipate heat.

Also, since it is contained in microcapsules, it will not melt and become sticky, nor will it interfere with ventilation.

The Effects of Outlast

The effect, as mentioned above, is temperature regulation. We’ll dig a little deeper into that.

Generally speaking, the temperature inside a garment is 32±1°C, the humidity is 50±10 This is said to be when the conditions of “%RH” and “airflow: 25±10cm/sec” are met.


Fabrics made of Outlast have a microchip function and thermography shows that the surface temperature of the skin is lower than other materials even in the middle of summer under the hot sun and warm in the middle of winter.

In other words, it is not a cool sensation at first touch, as is the case with contact cooling materials, but a temperature control material that can be used both in summer and winter.

Introducing Outlast Fabric

Now I’d like to introduce you to the fabrics that actually use Outlast.

OL7335 アウトラストメッシュ裏地 東レ
OL7335 Outlast Mesh

This is a mesh fabric and as of June 2020, it’s getting a lot of attention and inventory is pretty tight. Fabric. A friend of mine sewed it on the inside of a regular cloth mask and she feels it works.

16239 Outlast 2way Stretch

Sasaki Sellm’s outlast fabric contains 4% polyurethane and has a good stretch. It’s costing me a lot of money. I think it’s for winter pants and jackets. It is a chic color development.

If you are looking for this fabric, click here.

At the end.

Materials developed for NASA in the U.S., which are so unfamiliar to private life, are now available for life. These are the fabrics that you can drop into. Fabrics that are comfortable in harsh environments. We hope you will take a look at them once.

If you want Japanese functional fabric , please check Apparel Source B2B Site ApparelX!


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