When I was just a young man I used to ride around the dirt tracks on my bicycle without a helmet, without a care in the world. These days though a helmet is a necessity, it turns out as we get older those bumps to the head can get worse, so the need to protect our grey matter intensifies. Cycling has become a favorite of commuters in the world’s biggest cities, it is fast, economical, and gives exercise. However, carrying your helmet around all day can be a real hassle.