This decision primarily depends on you, we have the nylon this is good for water and wind resistance, but it provides the swishy noise, we have the micro polyester that is soft and lightweight that can be used in hotter regions, then there is polyester which  is slightly heavy than the micro polyester that means it can be used in cold region but not so cold and lastly we have the Triston. Which is heavier and not a good water and wind resistance, this is best for very cold regions.so basically you need to pick a material depending on the region you come from, pick wisely.