Excellent method. You can also use saddle soap to clean them first.

@Dave​ what’s saddle soap?

@dlc​ @dave​ saddle soap is a gritty business for scrubbing out dirt

@SandersAK​ but it gets the dirt out of the stitching and it makes the leather soft and supple.

@dlc​ See above and you can get it at most shoe repair shops and shoe stores and saddle shops.