Stinky Keens?

I have a pair of Keen watershoes that I wore kayaking. They were soaked and I left them in a hot car and now they smell like cat pee! I have left them out in the sun for 2 days, washed them with baking soda/water and put dryer sheets in them. I love these shoes, but I can't stand the smell! I would appreciate any help. Thanks!

By Linda H