For those who hold by Rav Elyashiv shlit”a, he is part of Torah (he is for all of us but he is not my rav so I do not particularly hold by every psak of his but rather use them as a base or to know when I should ask my rav something).
My Crocs did come in – but they are “professional” Crocs and they NOT comfortable, at least now that they are new, and I will be wearing them on 9 Av and YK.
They also are not a color I would ever wear in public other than to go downstairs to the grocery in my building, nor do I wear Crocs during the year except if there is an awful downpour (and even then, never to shul) so Rav Elyashiv’s reasoning doesn’t apply for me.
Daas, I don’t think the anti-fungal or even Lysol/Oust penetrates far enough into the material for them not to be a risk for prolonged wear as opposed to for stepping in and out of at a heavily chlorinated mikveh.