I've not been able to find a resolution to the hairstyle/helmet hair problem and have resorted to walking to work instead. Only have to go just over 2kms each way and takes only 25 minutes of fast walking. My hair is much like Oprah's natural curl and volume, and if I pull it straight it would reach about 2 inches above my waist. I keep it up in a French roll while at work - just to keep it under control. Some days it goes up easily and on others it fights me, so riding with hair down and then trying to tame it at work could take up too much time. Hence the walking. If only there was a helmet designed for "up-do's".