Some will never wear helmet, regardless of data galour. Others will wear, but comfort is the largest consideration to the type. My view is that its better to wear a helmet one is comfortable with ( you convince yourself of what works for you ), than not at all. I like the 1/2 I have, I like the full, but at times, the full one(s) really bother my neck, give me headaches, so I go with the 1/2. Its better than nothing.