two rib fibres h 1 h 2 in the form of high performance fibres which extend in parallel the high performance fibres which may possibly be worked into the woven base fabric 4 and the rib fibres h 1 h 2 in the form of high performance fibres in the ribs 5 are each composed of an aromatic polyester or to be more exact a liquid crystal polymer lcp such as is commercially available under the brand name u201c vectran u00ae hs t97 u201d they have a high tensile strength of 200 cn tex an elongation at break of 3 3 a high flexibility in bending a high abrasion resistance a high resistance to uv and a maximum temperature for use of 195 u00b0 c in the u201c over 3 under 1 u201d weave pattern variant which is shown in fig2 a regular pattern is followed in which a rib fibre h 1 which rests on the outside a of the woven base fabric skips three weft filaments 6 a 6 b 6 c at a time when the warp is raised before passing to the underside u of the woven base fabric 4 and being drawn down below the next weft filament 6 d when the warp is depressed before then at once passing back to the outside a of the woven base fabric 4 and so on out of step by a stagger of two weft filaments 6 a 6 b relative to the first rib.