has no affect upon the relevant areas calculated from the views assuming all the large diameter warp yarns 4 a 4 b etc the small diameter warp yarns 10 a 10 b and the weft yarns 5 a 5 b are made from three respective materials with respective moisture management properties hydrophilicity hydrophobicity then the unit cell 3 has a rectangular border of dimension s 1 u00d7 s 2 more specifically the unit cell 3 is bounded by the longitudinal centre lines of the warp yarns 4 a 10 a and the weft yarns 5 a 5 b fig1 b and 14 c show views of the first side 8 and second side 9 of the unit cell 3 projected onto respective planes parallel to the plane of the fabric 7 as there is no opening visible between the yarns the total projected area a tot of the yarns is calculated from the following formula if the warp yarns 10 a 10 b 10 c etc are hydrophilic relative to at least one of the other yarns 4 a 4 b 5 a 5 b etc the total projected area of hydrophilic yarn on the first side a 1 phi is determined from fig1 b and the projected area of the unit cell 3 for the warp yarn 10 a alone it is determined from the geometry and it will be clear that it is calculated from the following formula a 1 u2062 phi d 3 2 u2062 s 2 d 1 2 s 2 u2061 d 2 d 3 2 s 1.