A Candadian company is testing a jacket filled with specially-treated porcupine quills. The quills are treated to become somewhat softer. The quills offer incredible thermal insulation allowing the wearer to work comfortably in temperatures up to -60 degrees Fahrenheit. The quills are also sturdy enough that they provide protection against a .22 caliber bullet. The jackets are specifically intended for member of the Royal Canadian Mounted Police, but there has been a great deal of interest from Russian law enforcement.