I noticed that a lot of extreme sports, but the main skateboarders or bikers wear such a strange bracelet, I wonder if it's just such an item of clothing, a gadget, or whether it serves a purpose?
For example, soldiers of our army, I mean, Polish, so I have to wear. a sign of identity differently dog tag containing information name, military rank, place of birth, information about the military unit from which the soldier comes, and some basic medical information, just in case. I wonder if these bracelets perform the same functions or are they mere decoration.