The steam hose tube is black extruded EPDM for high temperature steam, up to 450°F and 250 psi.  The cover is black or red pinpricked EPDM Blend that is reinforced with high tensile wire braids.

Available as a cut length or by the full coil.  Don't want to mess with making the exact hose, build it virtually using the Build A Hose Online link.