GORE-TEX fabrics are waterproof, durable, breathable, and windproof materials developed in the United States. GORE-TEX fabrics are made of a membrane-like material called "GORE-TEX membrane," which has numerous microscopic pores inside, and the outer and lining fabrics laminated to it.

 

 

 

 

 

GORE-TEX membrane is made of a fluoropolymer called ePTFE, which is derived from the natural mineral fluorite. The fluoropolymer is processed into a thin membrane. This membrane provides the three major functions of GORE-TEX: waterproofing, windproofing, and breathability. 

 

 

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The pores in the GORE-TEX membrane are so small that water droplets cannot pass through it, but are larger than water vapor molecules. This means that GORE-TEX wear remains dry and comfortable because the membrane prevents water from entering the garment, while at the same time releasing moisture vapor from perspiration.

 

It is also windproof. To begin with, wind is the “mass” of airflow that hits the body and makes you feel cold. The GORE-TEX membrane has a three-dimensional cobweb-like structure that prevents wind from blowing against the body by dissipating it.

 

GORE-TEX wear materials are made by laminating fabrics onto a "GORE-TEX membrane," as described at the beginning of the article. This combination can be used to create a number of different types of fabrics.

 

There are three main classes of GORE-TEX wear.

 

 

GORE-TEX イメージ

 

Image credit: https://www.burton.com/blogs/news/w20-gore-tex-column-2/

 

1. 3-Layer Type 

 

Consists of a membrane equipped with fabric attached to both sides (outer fabric + GORE-TEX membrane + lining fabric) and varies depending on the application and product. It is robust and feels good against the skin because of the lining fabric.

 

 

GORE-TEX イメージ

 

Image credit: https://www.burton.com/blogs/news/w20-gore-tex-column-2/

 

2. 2-Layer Type

 

Represented by a membrane with outer fabric attached to it, but without lining (outer fabric + membrane). 2-layer type is softer than 3-layer type because there is one layer less (no lining), making it easier to move around and more breathable. Since the lining is detached, some types of insulation can be placed inside it.

 

It is possible to increase heat retention due to the creation of air layers and to combine with lining fabrics such as mesh, for example.

 

Image credit: https://www.gore-tex.com/jp/technology/gore-tex-products/paclite

 

3.GORE-TEX PACLITE® Product Technology

 

Features a membrane with outer fabric attached to it, without lining, and coated on the reverse side (outer fabric + membrane + coating). It is lightweight , packable, portable and extremely breathable.

 

As described above, various fabrics can be made by combining outer and lining materials.

 

It is washable!

 

Many people think that GORE-TEX clothing will deteriorate when washed. There is no need to worry about cracking, or peeling after washing as it doesn’t get spoiled.

 

The "GORE-TEX membrane" is extremely durable and will not crack or peel when washed.