Great! Keeps the form of the shoes. Especially because of quarantine - shoes have been sitting idle. These store the shoes nicely. Large for a size 10 medium width well. Though I think if we could get away with a medium.
If they are sold by sizes that are not congruent with shoe sizing, wouldn’t it only be common sense to have a size chart? Is a medium an 8? Is it a 10? What’s considered large?