I am very disappointed as I thought I was buying mostly cotton socks.  The post stated 85% cotton 13% polyester.  The product packaging states 73% polyester 25% cotton.  I have pretty sweaty feet and like the breathability of cotton.  For the price (3 pair @ $14.40), I won't take the time to return them.  Hopefully, my feet don't sweat too much.  I hope my review helps you make a more informed buying decision.