I’ve only done it about 5 times so far and I don’t see any discoloration yet. I actually got this spray from a CBD company years ago. It’s only alcohol, lemon, and water as far as I can tell.
If the insides of my shoes start to turn white I’ll come back to your comment to let you know.
My feet sweat a lot so I wear very thin shoes with airation holes and they’re usually pretty stretchy. I slide my shoes off and on easily and only tie them once when I first have to buy a new pair. Usually the heel blows out before anything else, but it’s probably my fault because I throw them in the washer/dryer trying to fight the stink from sweaty feet.
If anyone else has this problem I just recently found that hand sanitizer spray works way better than washing and drying because the alcohol kills the smelly bacteria.
I think it’s more general than that. I get more of a dude venting to a friend who’s no longer with us vibe from this.
Those do look really comfortable! I wear something very similar for work, but they have more a dress shoe look. Almost exactly like these but thinner I think: https://a.co/d/cLPsGH6