Hello, I am really interested in one of these G Spec flags. They are basically made to government specifications- mostly has to do with size *for example, in the 5 width flags: instead of 5' x 8' or 5' x 9,' they are 5 x 9.6" .** Does anyone know what is the best and most common material used in government/military? (I have seen cotton as well as nylon in these flags on online flag stores but heard polyester is strongest for flags in general. I do not see these G specs in poly though. You would think military would use durable.) Cotton is more traditional (and used for funeral service burial) but nylon seems good for all-purpose weather. Does anyone know what the general size range is of U.S. military flags..for example- around 9.6, 20 ft. or are they they really large- 20x 30?? (btw, these are just estimate sizes. Also, what other manufactures for G Specs are there? I've only seen Valley Forge. I have nothing against VF , but want to see all options of G Spec. BASICALLY, I AM TRYING TO HUNT DOWN ONE OF THE MOST DURABLE/OFFICAL G -SPEC! Please help. Thank you!! Anyone serve in the military or know much about the official ones.