Gore-Tex Pro Shell

What is it and how does it work?
In the autumn of 2007, Gore-Tex XCR (eXtended Comfort Range) is to be replaced by Gore-Tex Pro Shell, as the latest version of the well known waterproof and breathable fabric, originally developed over 30 years ago by W.L. Gore & Associates. It retains the familiar '3-layer' construction (a microporus ePTFE membrane laminated between protective outer and lining fabrics), but the lining layer has been changed from the long-used knitted 'scrim' (with a more open, bulkier structure) to a new woven 'Micro Grid Backer' fabric (which is lighter, thinner, smoother, but more durable). However, some 2-layer Gore-Tex products (where the ePTPE membrane is laminated to just the outer fabric, and a free-hanging liner fabric used) may be also labelled as being 'Pro Shell' by some clothing manufacturers.

What are it's benefits?

It is lighter and less bulky than Gore-Tex XCR, reducing overall garment weight and bulk.
The lining is more abrasion resistant and less likely to 'catch'.
The lining is smoother and therefore glides over other clothing layers more easily.
W.L. Gore also claim an increase in breathability over XCR.

What are it's drawbacks?

It is it more expensive per meter than XCR fabric, and has therefore lead to an increase in garment prices (£10 to £50).
The lighter, thinner lining gives the 3-layer fabric an overall thinner and lighter feel, which can make the fabric feel less durable (even when the same durable outer 'face' fabrics are used).
It is still possible to get wet in a Pro Shell garment due to inherent limits in breathability (when working hard, etc), and 'holes' that let in water (cuffs, neck, open pockets, etc).

What does it cost?
Jackets will start at about £240 and will be as much as £400+. The price depends on the number of features the garment has (such as watertight zippers, pockets, pit zips, etc), the construction methods used (traditional stitching and taping or more modern die-cutting and laminating), and the quality of the outer 'face' fabric (different types of nylon and polyester face fabric are available).

How do I find out more?

[ www.goretex.com ]

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