I understand that helmets are ugly and ruin your hair, but I've known several people who have been in severe bicycle accidents and the only thing that saved their life was their helmet. So needless to say I always wear my helmet, even when it doesn't match my outfit (which is always because my helmet is a hideous pink color)!
But now, we have the invisible helmet. Brought to you by two insanely intelligent Swedish women. Watch the video and check them and their product out!
You can buy their helmets online here. I know what I'm putting on my Christmas wish list!