What's that Smell?

So....our van stinks. I mean, really stinks. We couldn't figure out what the smell was and then we discovered it yesterday. It was Sawyer's boots. He wears snowboots without socks and now his boots smell awful. He left them in the van and it stunk the whole thing up. Maddy said...and I quote...."It's like puke married poop and had a ceremony in my nose."