After purchasing this stuff online, later discovered they stock it at the local Walmart (camping section) where it was not only it cheaper, the spray can was extra sized.
I like this stuff. Not bulletproof but water and dirt don't stick to packs and equipment nearly as easily.
I've no doubt rain gear is helped by this but: the only heavy rain we saw this year was during strenuous portage and there was no way to know how rainproof it was with all that perspiration.

That was some good advice M_M_ 

I don't have Marmot gear, but I'm sure the recommendations for DWR care goes across the board.

They have an informative video about cleaning DWR garments and I learned something
about the proper detergent to use.

I didn’t see anything about products like the silicone waterproofing ruining the breathability of DWR, but IF liquid detergent is bad for them, I have to think that silicone would destroy the breathability which would basically make your DWR garment just like a coated nylon one.

Click on the video, it’s pretty funny.

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