Pareos
It's an absolute summer festival essential ;)
Can be used as a beautiful shawl while it’s sunny or getting little bit colder on a sunset or as a blanket for your medicine session or yoga practice, take it to the beach and you have a beach blanket plus a light and fast drying towel, cover your head and shoulder while dancing, make it wet and you will never be hot on a dance floor, tie it as hat or a face mask to protect you from any dust.
The most useful accessory ever on any festival or journey.