These cushion covers are a sort of crochet wool abstract art on a very heavy cotton / linen fabric, I can't remember where they were from - possibly Heals or the Conran Shop.  They were only ever used in our sitting room which was not in daily use.  They haven't been subjected to dogs or kids and we are a non smoking household.  Due to to them being wool or possibly an acrylic - I'm afraid I don't know for sure, they have a couple of fluffy bits, I guarantee they aren't noticeable.  One cover has some dust marks on the back.  All the buttons are still present and in good condition.