one common problem I find with boots is that the toe part of the liners usually don't dry fast enough so they smell like shit after a few times of use, what I do is open up all the buckels and try to stretch the top part open as much as possible and leave it upside down on a heater vent at home, usually it's going to be dry or close to be dry by the next day. Make sure you always try to dry the inside of the liner if possible, especially if you have sweaty feet