They bring dishes for each dog to eat from. Each musher carries an extra gangline and harnesses. That is what mushers must pack for their dogs. Everyone has to have proper clothing in the Iditarod. All mushers have to have extra clothes packed.
Some mushers have ten different pairs of boots and gloves.
They have about nine different pairs of clothes. A snow hook to a musher is like an anchor to a boatsman. A snow hook is a piece of metal that is shaped like two hooks put together on a small thick bar. When a musher wants to stop his team he throws it down and it digs into the ground or if there is no snow he hooks it onto a tree. It hooks in a little pouch on each sled where the mushers can reach it.