It is just cotton material from JoAnnes, sure not much cheaper then the RSN can be though. Depending on what you use, can run anywhere from like $2 a yard and up to double figures!!
As far as how it will hold up, not sure just yet. I figure there are other windsocks sold out there with same materials, so why not.
I figure if they last for 1 or 2 yrs thats kwel enough. I double hemmed all the seams so it should be alright.
Will have to wait for the wkend, hoping that Ol Ma Nature will not be holding her breath. I will be able to get out and see how it handles. Will start the other 1 after that.
Will post all results.