M&S plastic carrier bag. Costs nowt, and does the job better than posey inappropriate black leather jobbies. It is replaced regularly (again, at no cost) by any other plastic carrier bag as wear and tear dictate. Holds my helmet, second headset, GPS, charts, AFE guide etc. And after the helmet has been removed this flight bag can be stuffed into the tiny luggage locker behind the Chipmunk's rear seat.
SSD