A tubular woven fabric for conveying liquid under pressure.
Note: Hose is manufactured in both unlined and lined forms. When unlined, the weave is plain and the material is generally flax or hemp with a weaving density so arranged that when the fibres swell on wetting, the fabric becomes tight enough to reduce percolation under pressure to a negligible amount. For lined hose, fibres other than flax or hemp may be used in a plain or twill weave. Light-weight hose woven from synthetic yams may incorporate an independent tubular plastic lining, which is introduced during the weaving process or afterwards
Textile Resource (http://www.textile.org.uk)