NOVELTY - A hydrogen fuel transporting hose for a fuel cell powered vehicle, includes inner and outer rubber layers that are provided by a vulcanized rubber obtained by vulcanizing a rubber composition including a rubber material and a filler whose crystal structure is a layer structure. The rubber composition is vulcanized with a peroxide vulcanizing agent or a resin vulcanizing agent.    USE - For a fuel cell powered vehicle.    ADVANTAGE - The inventive hydrogen fuel transporting hose has high degrees of flexibility, freedom of piping layout, and hydrogen fuel impermeability, while exhibiting a high electric resistivity and a low ion extractability for preventing ions, e.g. metal ions or sulfur ions harmful to the fuel cell, from being extracted from the rubber hose into the hydrogen fuel flowing through the hose.    DETAILED DESCRIPTION - A hydrogen fuel transporting hose for a fuel cell powered vehicle comprises a laminar structure including inner rubber layer(s) (12), reinforcing layer(s) (14), and outer rubber layer(s) (16). The layers are laminated integrally with one another in the order of description in a radially outward direction of the hose. Each inner and outer rubber layer is provided by a vulcanized rubber obtained by vulcanizing a rubber composition including a rubber material and a filler whose crystal structure is a layer structure. The rubber material comprises halogenated butyl rubber material, a blend of a halogenated butyl rubber material and a butyl rubber material, and an ethylene-propylene rubber material. The rubber composition is vulcanized with a peroxide vulcanizing agent or a resin vulcanizing agent where the rubber composition includes, as the rubber material, the halogenated butyl rubber material or the blend of the halogenated butyl rubber material and the butyl rubber material, while the rubber composition being vulcanized with the peroxide vulcanizing agent where the rubber composition includes, as the rubber material, the ethylene-propylene rubber material.    DESCRIPTION OF DRAWING(S) - The figure is a perspective view of a hydrogen fuel transporting hose of the invention.    Inner rubber layer (12)    Reinforcing layer (14)    Outer rubber layer (16)