Don't get me started on eye-watering prices for sweaty polyester. Polyester has no place in high end companies' offerings. And yes, totally agree that Whistles is really bad for this. I am tor between feeling really annoyed and sad that I see loads f lovely-looking things in Whistles only to find out they're polyester, and relieved that if it's polyester I don't even think about buying it, which saves me a lot of money.
I just can't work out who the people are paying hundreds of pounds for manmade fabrics.