Loafers are, as most know, always more difficult to get a good fit on, since you have no opportunity to easily adjust the way they fit with laces or buckles. Most common is that they slip at the heel, for this a simple self-adhesive tongue pad is an excellent solution.
Many of you who like loafers and have one or more pairs will recognise this, that the shoes may already be a bit loose from the start or that after they have been used for some time they have started to be a bit loose, and perhaps above all you start to experience heel slippage. Most do not care about doing anything about this, those who do something usually choose to put in place the fairly common adhesive heel grips that are available. It is understandable that one chooses to fill up at the heel when it is here they are slipping, and it can work fine, but in the vast majority of cases it is an even better option to choose a self-adhesive tongue pad instead.
This since the most common reason for the loafers being loose is that the foot is not held sufficiently in place over the shoe’s instep, which means that the foot slides forward a bit and it gets loose around the back. But putting the foot more forward in the shoe with a heel grip can cause the foot to sit slightly in the wrong place in the shoe, while the tongue pad makes the foot retain its natural and correct position while at the same time keeping it in place and eliminating slippage. The best part is that it is so easy to fix, these self-adhesive pads in leather with a soft foam rubber core you can buy from for example us at Skolyx or at your local cobbler, they cost around €10, and then you clean and wipe dry the tongue and attach them yourself.
I have written more about different fit corrections here on Shoegazing, for example in this article.