No it used to be just the sacks stop the dust and go down the back and I've known the time what er, when they needed a regular gang of dockers, if they went to work on er, on er Monday morning with a dirty head bag on made of calico, they'd have to buy the beer cos they had, if they ain't got a clean head bag on or a cl clean skullcap, there used to be a little old calico skullcap they used to put on just to keep the dust out the hair and all like that.