I’m not so sure, but I’d suggest just putting in some Woodlore shoe trees it’ll help keep their shape while keeping them dry and deodorizing them as well. I don’t recommend plastic shoe trees as they only keep the shape.
This woodlore 2 pack of pairs go for ~$15/pair: https://www.amazon.com/Woodlore-Shoe-Trees-Men-Adjustable/dp/B0765B2FCQ/ref=sr_1_5?keywords=shoe+trees+woodlore&qid=1554693920&s=gateway&sr=8-5. Second the Jos. A Bank sales to get it lower, but that's like a few dollars cheaper (~$10/each?).