Spirit Airlines is now spelling out exactly what passengers can and cannot wear or show when flying the friendly skies.

A representative for Spirit Airlines was not available to comment ... have similar clauses in their contracts of carriage ...

Spirit Airlines says it will launch new service to four cities this summer and fall, including Detroit to Savannah in October.

This addition makes Savannah the second Georgia destination served by Spirit, following Atlanta ... In January, the budget airline updated its contract of carriage to specify the types of clothing ...