I'm curious how similar it is to your standard DWR finish on less expensive rain jackets- that stuff always wears off quickly. Also, how many coats did they put on that white sneaker? Did they soak that thing in the vat down at the warehouse, or was it a single spray from the ole can? I'd think there is a high likelihood of an excess amount having been used in the commercial (why wouldn't there be?)
May buy some to play with in a few weeks. If nothing else, may be entertainment for some evening experiments.
Makes me think of the National Lampoon's sledding scene with Chevy Chase.