i know you say online, but i ring up the local sailmaker with a list, he obviously only has the best products for him to use as he doesnt want any complaint or returns, he happily cuts of fabric , webbing to my exact lengths i need, and precise no of fixings / hooks / zips to length etc Kayospruce has set packet sizes, also the huge quality variations of all the uv rated fabrics means you have to believe the web site, where as the sail maker knows that "x" will fail faster than "y" even tho its more expensive.. they either post out, or you could collect if local & negociate !