I have Simms wading sneakers.  I bought them sized to wear without socks.  Great boot.  Offers great foot protection when I partially wade in to hop into my kayak.  I’ve waded a stream with them.  They take so long to dry!   And the funk is atrocious.  It’s not a foot odor.  More musty?  
 

I’ve run them thru the wash w my car drying towels.   They come out great, but once  by I step them into a lake, phoosh.  Funk city.  
 

This is my summer kayak shoe.  I’d hate to step on a fishhook at the docks. 
 

Im soaking them in oxy-clean now.  Then more sun drying. Any tips from you wader types?  

https://www.amazon.com/Gear-Aid-Revivex-Wetsuit-Drysuit/dp/B077T32WDH/ref=sr_1_7?crid=21QQRTBG9FK9U&dib=eyJ2IjoiMSJ9.QghGxEK4g9_dhFnJuplKYxqiBBSunGsYfF9bi-QrA0DMAOJ5XJNq6ii6XFJgUNeZ7x4GQenF9BIPyzhDS171MDMUhW2DgZdy5ZtubgwW4yF5PjnjuLEBp80xprL6WpjVuwJMm6Kg9pyXYLsdTMODe8pnDTbRDauDLPF8B4Ssx8rE8LydiN2vhtFmRoKEzVcVGeSRySiofJSSgEBeF0ct5_50ZAXg80NJJ_e6jpKSHONDTvLWd7YAT-MEVZSanXTma-n6TR6da6EUnKm1zcDCp7auzt6E0YPeMYknuUpCK5I.AhplWOWh-Mi_On7EaFaorkNn9KCaTZ60YFI4yNVIU_Y&dib_tag=se&keywords=wetsuit%2Bcleaner%2Band%2Bdeodorizer&qid=1748811242&sprefix=Wet%2Bsuit%2Bcleaner%2Caps%2C107&sr=8-7&th=1

 

You need wetsuit cleaner.  Diving suits get the same funk.  It is biological materials (bacteria and other living things) that leave a biofilm that you just can’t get off without enzymes.  A chlorine soak in a swimming pool that is being shocked will work.  Lysol disinfectant concentrate will work also if you just want to soak them in a bucket of screaming hot water with a bunch of it.  

 

https://www.lysol.com/products/multi-purpose-cleaners/lysol-disinfectant-concentrate

 

We just got home from a dive trip and I’m about to do the pool trick for my BCDs.

Ozium spray from Amazon.   Stuff is awesome.