If you think showering with the collection of festival bands around your wrists helps keep them clean, think again.
Riot Festreports that microbiologist Dr. Allison Cottell studied a person that wore two fabric festival wristbands for two years, and found that the wristbands contained over 20 times the bacteria found on clothes. Ew!
Although those bacteria are usually harmless, they can cause boils, infections and even lead to food poisoning.
Probably best to take those things off after the festival, then.