These curtains are lovely, but on your site, these curtains were advertised as "machine washable", "winter white" and as having a, "heavy-duty canvas feel".
Upon receipt, I observed the product packaging stated, "hand wash", "white" and found the the material to be a semi-transparent light burlap/mesh weave that felt and looked similar to the material of a beach cover-up robe.

This is the first time I have had to return a Wayfair purchase. 
I contacted CS who initially stated I would have to pay (29.95) for the return, but when I stated the curtains were misrepresented, she then stated I would not be charged for return as the curtain packaging stated, "hand wash" (vs your site description stating machine washable).
As directed, I will return them tomorrow through FED EX, and hope that I will not be charged by FED EX for the return.  If so, I will re-contact CS.