I had some super stinky boots last season and got the smell out here's what you do. Stuff the toes with dryer sheets unscented works best because fighting bad scent with good scent just creates a weird bad mix. The sheets themselves will deodorize them. Then fill up two ziploc bags full of baking soda. like full so you can sit them up on their own. Sit the bags in the boots, open the ziploc section nice and wide and let them sit for however long until next use. They should be odorless now.
But If they still smell put dryer sheets in again and take baking soda and actually put it into the boots, like a healthy amount, then vacuum it out when you wanna use them again. This should do it.
"kinda miss my kid, sold it for my vibes ticket and some dose last year hahah. but i still shred on the hand drums like it's my job." -DFAC
MBB not once not never.