mastertangler wrote on Apr 17^th, 2011 at 11:37am:

PhantomJug wrote on Apr 17th, 2011 at 3:45am: Pee on it and hang it in the sun.  Worked for a pair of shoes I had.  Some of the best lessons are learned by accident.  Literally. And they keep telling us that size doesn't matter! Well I say it does........ especially if you don't want to pee on your shoes. ;)

I'm thinking what you consumed that made you pee on your footwear might have something to do with the odor removal ;D
Seriously, I'm wondering if the uric acid could have something to do with your result :question
 I use baking soda mixed in water to take odor out of Naglene bottles, so maybe a long soak in that mixture, rinse and air dried in sunlight might do the trick.