It's his shirts, it is. They've got a mix of sweat and deoderant in white marks under the arms and the normal wash isn't getting it off.
Now, I know this has been done before but I can't find the thread.
I don't mind so much when he's wearing them (it doesn't seem so noticeable then) but I can't abide having stinky washing drying round the house.
Is there something he can put on them to get the marks out? What works best?