as the others said the rules are on the site, but there are no restrictions on cloth can use what ever you want. only half dozen measurements for the jib pretty basic.

luff- 4120mm
leech- 3810mm
foot- 1680mm
head- 50mm
max foot round- 100mm
1/2leech (IRC 90deg swing arc) - 790mm

"Sixth Element"
1782 MK2 w/spinnaker.
Lake Bonney Y.C.
National Sec. / S.A President / S.A Measurer / Commodore LBYC