What I would like is a waterproof but not mega warm coat, down to knees, not sack shaped but most of all with a proper hood. Not one of those 'face framing' versions that fall off straight away. Not a walking coat with toggles that you pull to scrunch it up around your face. A hood that extends forwards. Have read the 'warm waterproof bum covering coat' thread, but I feel anything there will be too hot. Any suggestions?