Which awning replacement fabric should I buy?

I'm not sure what my original make is, but the fabric is now shot. I have found a number of replacements, but comparing them is difficult. I have discovered that I can't buy the best fabric, as it isn't compatible with a system that doesn't have a metal cover. Mine has no cover. Some of the fabrics have weights noted and some don't. One says it is heat welded and the others seem to be sewn. I'm unsure, but it seems sewn would be preferable. I will attempt to post links and you can also tell me of your experiences.

https://www.awnings4rvs.com/14ftRollUpAwningFabricReplacement

https://www.ebay.com/itm/62414-RV-Patio-Awning-Replacement-Fabric-14-Ocean-Blue-Fade/262560061613?epid=655926657&hash=item3d21cc98ad:g:S~8AAOSwo8hTobTv&vxp=mtr

http://www.campingworld.com/solera-universal-awning-replacement-fabric-and-weather-guard $218 in my size

http://www.campingworld.com/linen-fade-replacement-fabric-for-dometic-patio-awning-with-vinyl-weathershield $256 in my size

http://www.campingworld.com/vinyl-replacement-fabric-for-dometic-universal-patio-awning-white-weathershield-included $228 on sale in my size