Improvements in or relating to air-bags

A method of weaving fabric for use in the manufacture of a vehicle air-bag, the method comprising: providing a weaving reed having a plurality of adjacent cells; introducing regular warp yarns into at least some of the cells; introducing an additional warp yarn into one of the cells that already includes a regular warp yarn; and carrying out a weaving process in which: weft yarns are interwoven with the regular warp yarns and the additional warp yarn; the regular warp yarns each remain within one cell throughout the weaving process; and the additional warp yarn is moved from a first cell to a second cell during the weaving process.