Whether you’re a beauty novice or a confirmed fashionista, this topic is for consulting Mumsnetters on all things style-related. Plus, check out our Swears By page for the inside track on the next Mumsnet must-have.
The reason why things like this go out of shape or stretch usually is because they are too wet. Make sure if you wash it on a delicate setting it has spun enough..def dry flat..hanging will make it turn into mr tickle. Furthermore if you wash it according to the instrctions and it doesn't work , Take it back. ALso use a liquid detergent to be on the safe side and wash seperately if you want to be super safe.
when you get it ou of the machine get rid of excess water by laying it flat on a towel and then roll the towel up like a sausage (quite tight) then unroll and dry flat. I used to work for a v expensive knitwear company and this was the advice we were trained to give customers, it does usually work