Abstract: A helmet cover system for visually enhancing conventional helmets thereby encouraging children to wear helmets. The inventive device includes an outer shell, a support strap attached to the outer shell, and a securing device for securing the outer shell about a conventional helmet. The outer shell preferably has a visually appealing appearance such as a cartoon character, a sport team's helmet, or other desirable shape for children. The outer shell comprises a body, a cavity within the body having a lower opening, a face opening, and a curved member. The cavity is formed to removably receive the conventional helmet and yet be easily worn individually by the child upon their head without discomfort. The body of the outer shell is preferably comprised of injected foam material and painted with a resilient paint for providing a visually stimulating appearance to the child.