Solid cologne is an airport and travel friendly way to travel with your favorite WSP Signature Scent. The tins won't shatter and they're solid; not liquid so TSA isn't going to confiscate them.
They also work well for those anti fragrance office environments. Instead of a rapid burst of scent, the wax & jojoba oil carrier (instead of alcohol) extends the fragrance's life by several hours. So instead of a flash in the pan, think of it as a slow burn.