This AirHead helmet insert created by an Australian company helps reduce embarrassing effects of "helmet hair" for motorcycle riders. According to some, it also further proves Australia's position as the world leader in hair style preservation.
Science says that your hair suffers from being crammed inside a helmet for hours at a time and it can get hot and humid, leading to an unfortunate flattening of your hairdo. What the AirHead does is create a bit of extra space between your scalp and the helmet so that your head remains cooler, sweat-free and more importantly preserves your hairstyle. Although, do note that if you intend to do a funky updo with plenty of hairspray, the AirHead probably cannot save your mane.
For $25 the insert installs sans adhesive and it comes in a variety of different designs.