I still don't recommend anything other than water free Vasaline. Wax gets old and can flake if too much is applied. Vasaline has no colour or oder and is easy to apply with a finger or too. I've tested waterproofing wax it darkens the leather which may be not what you want with a brown leather. With black it's OK However Vasaline does offer some waterproofing too.

However this is off topic sorry