What's with all of England's blue, black and marmalade coloured away jersey bs.
Seeing as their primary jersey is white with some red it would make perfect sense to have their away jersey the other way around.
Perhaps a jersey that is a base of white with a big red cross on it would make sense, that is after all their flag and the red would stand out as it is the most noticeable colour to the human eye.
EDIT: Kind of like this but with the cross bigger and going the whole way through. Also red shorts and sleeves.