Does anyone have any experience with Arket knitwear? I'm looking at a cardigan thats a mix of alpaca, wool and polyamide, but it says do not wash, not even 'dry clean only'? Does anyone have one that they've tried washing? I'm not keen on the idea of something that I can never risk getting dirty, I wear layers underneath so my knitwear doesnt need washing that often but sleeves etc usually get a bit dirty after a while!