I bought the Haven in brown Nov 2009 and was very happy with it......fast forward to now, and NOT so. Because of the fabric outer shell, I was reluctant to wash it, in case it impaired its 'water Resistant/Repellent' coating, so NEVER did 
Well, I was out for once in rainy London, minus my car, safe in the knowledge I was in 'Haven'. However I immediately noticed that the rain was soaking into the Merrell Haven, whereas before, it would just 'sit' atop the fabric's surface. I only had a t-shirt underneath, and when I took the coat off, sure enough, my arms were damp to the touch 
. So I called the online store where I purchased it, they told me the Resistant/Repellent attribute looses strengh with each wash. I informed then I had NEVER washed it, and was put on hold. They then told me, get this, that because I'd never washed it, the dirt particles are the cause of the loss of Resistant/Repellent feature 
. I reiterated both arguements back to her and she realised the contradiction of her reasons, so duly put me on hold, again. Now I had the pleasure of talking to the manager, who said they couldn't take the coat back, however i buy these two products, Tec wash cleaner and tx direct both by nik wax. Both are good to use in a washing machiene, however one must take care to remove all traces of detergents, which will impair the products performance of recoating the Haven's Water Resistant/Repellent feature. I will update if I do got this route, however, I'm trying to push for a new one 
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HTH