Arc'teryx
http://www.arcteryx.com/faq.aspx#4Stain removal
To get grease out of a Gore-Tex® you should dampen the stain and rub
in dishwashing detergent. You can then launder the jacket in warm
water with pure soap or mild powder laundry soap. If the stain
persists, sponge it with a safe cleaning fluid or mineral spirits;
both can be found at a grocery store. If cleaning fluid or mineral
spirits are used DWR will need to be reapplied.
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How do I wash my Gore-Tex® jacket?
Be sure to zip all zippers before you wash your jacket. You can wash
your Gore-Tex in a regular washing machine, in warm (not hot) water,
on a gentle cycle. Please use pure soap (which is best) or a mild
powder detergent. Do not use Liquid detergents > or ones that contain
oil, or have fabric softeners in them (such as Woolite ®). Detergent
interacts with the DWR finish and will interfere with the performance
of the jacket if it is not totally rinsed out of the material. Run the
garment through at least one rinse cycle and tumble dry on medium
heat. For optimum performance you may also need to re-apply the DWR
(durable water repellant) finish on your water-repellant garment from
time to time. Do not dry clean or store when wet.
