You should probably contact Storm...I'm not sure that you are supposed to wash it.
I HAD to wash mine, since an animal sprayed it. It was that, or throw it away. We wash our rain-proof horse blankets in a non-detergent blanket wash made especially for protecting the rain proofing, and I buy it at the tack store. I used that on my jacket, and then hung it to dry.
But I would contact Storm before washing or cleaning it. From what I remember, you are only supposed to spot clean it with a damp sponge.
I don't know about washing it...but for drying it I would recommend using a SHAM-WOW ! It picks up 20 times its own wait in water. I saw them on TV and it seems to really work and they are only 20 bucks for 4 of them.BUT WAIT!!!! If you call within the next 20 minutes they will DOUBLE your order !!! Just pay a small handling charge!!!! How can you go wrong ??........And..if it doesn't work out for that you can always use it to wipe up all the crap that Stu spreads around !!!.................Charles Austin, Edinboro
Wash the coat with a gentle detergent on a gentle cycle if you have one, otherwise normal will be fine. Remove the liner if you have a liner. Don't put it in the dryer. Hang it to dry. If you wash it many times, you may want to spray the whole thing down, including the leather, but especially the shoulder seams and the knit collar and cuffs with a waterproofing product like ScotchGuard or something similar. For grease spots you can use a product like Energine or even Gun Scrub.
I bought a Storm jacket a few years back and have loved it. However, washing it has caused the inside of the outer fabric to peel away. I'm not sure if I'm descibing it right but it is the waterproof coating on the inside of the outer fabric. I probably only washed it annually and normally as my other clothes. Has anyine else experienced this?