Question for fashion designers ?

[Asif Shah]

Hi There,
We are a textile testing and certification company based in the U.K.We currently run two eco schemes.Oeko tex 100 and "made in Green".
We are exploring a new and exciting sustainable project and I was hoping that if you are a designer reading this might you might be able to help with our research.
As a designer what influences your choice in choosing a fabric for a new design and in what priority,i,e,Price,design,material,ethics?I am trying to understand your influence for buying.Any help would be much appreciated.