Been looking at different types of product for kites- found the perfect answer - it doesn't break down under hot sun or sea water ,sand can't grind into it causing tears,can't be punctured by shells,sticks, ripped by mad dog on beach,cut by knives of disgruntled windsurfers , etc and you don't need plastic bladders because its as tight as a drum - guaranteed to last a lifetime- only problem is that to buy enough to make a 12 metre kite you have to spend about 10million bucks - the answer - the material used in USA space suits. check it out on NASA site- the stuff is amazing and as light as a feather- lucky kiters of the 23nd century have got it made- it will be cheap as chips by then
