Poor chickens. There's a lot currently about due to HFW and Jamie Oliver's programmes, and I found this on the net.
It is inded commendable to help ex-battery hens, yes, but with proper care *suited to chickens*, they can cope quite well and in a much more dignified way than this, I am sure. Penguin jumpers are slightly different - in that they help to absorb any oil left in the feathers - in my view. Give hens the right care and attention - good warm housing out of draughts, decent food, other chickens for company, fresh water and food, room to roam/move around in - and they will soon be on teh road to recovery without having to resort to this.