Bike helmets are fundamentally alike: a hard exterior shell covers a shock-absorbing material underneath, and a chin strap (or two) holds the device snugly in place on your head. Variations on this theme offer different colors, materials and increasing or decreasing amounts of ventilation or aerodynamics. But what about protecting the second-most sensitive area to the head—the neck? How can this product's design compel a cyclist, whether a commuter or a professional, to actually want to wear it? What about it not interfering with a perfectly coiffed hairdo?