At the time it was understood that a tumble drier had been the cause of the incident, but because of the extent of the damage it could not be confirmed.
Available in different tog options for different seasons, you can bung this in the washing machine and even tumble drier, keeping it fresher and cleaner for longer.
I accidentally dropped it and didn't replace it because what can't be worn straight from the tumble drier isn't going to last five minutes in our house anyway.