Waterproof gumboots are made in different lengths of uppers. Gumboots and dirty clothes, and Primus stoves, and rough food, and salt water. The brand is considered iconic by many New Zealanders, being a leading producer of gumboots. It became necessary to obtain a licence to buy gumboots and hotwater bottles. Noting McCandless' unpreparedness, the stranger who drops him off gives him a pair of gumboots. In South Africa these are more commonly called "gumboots".