I might have put my Orvis breathable waders away before they were completely dry, only to discover after more than a week they smelled strongly of something (probably mildew). I washed them in the washing machine and hung them up to dry inside and out. It seems the smell went away from the breathable material, but remains strong in the neoprene feet. Is this condition correctable? Although I know that Tilex is a mildew killer, but should I risk what it might do to the material? If so, what should I do?
I have heard that Listerine works.
Try Febreeze. It always seemed to work on the boys hockey pads. If you’ve ever had a whiff of “hockey smell”, you’ll appreciate the need for finding a skunk killer
have you tried not smelling your feet? 
Fortunately, you only have an odor in yours. Saw a guy on the stream last week, as he pulled his waders on, he yelled, and ripped them off again, even quicker than he pulled them on.
We stood there and watched as he dumped a mouse nest out of the boot foot! Incredible!!
Yep! I’d prefer the odor anyday!! (pet odor Fabreze ought to do the trick on your waders…spray 'em, and hang 'em in the sunshine for a bit!)
Trouts don’t live in ugly places
Here is the magic formula:
I learned this watching CSI and I tried it on the inside of a cooler where food rotted for a week. Before I tried detergent etc. and it still smelled until…
Take lemon juice and cover all the area that smells. Let it sit overnight. Rinse it in the morning.
Migs
A drop of clove oil in the booties. It will mask any wader smell.
Chars,
Paul H.
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“A dry fly on the rise is the beauty mark of a lovely river.”
I use Dr. Scholls foot powder in mine when they get too bad or when the wife won’t fish within a hundred yards of me on the river or when she won’t even ride in the same vehicle as my waders. 
)
Happy Trails,
Dean
The treatment for ring around the collar is not bleach. It is to clean your neck when you shower in the morning.