Anyone with any ideas about how to-
1) Turn formerly white sports bras back to their old colour
2) Keep new bras from going grey in the first place
3) And get rid of the orange sweat stains that eventually appear.
My bras are made of spandex, elastine and nylon so I am not sure if bleach would be good for them. I normally wash them with my cycle gear in a machine but always put them in a laundry bag (cloth not mesh) to protect them. I have tried nappy soak which did nothing. I wear deodorant- is that the cause of the orange stains?