A lightweight, breathable cycling helmet for all types of riding with the advanced protection of WaveCel technology. A major advancement in the protection against cycling-related head injuries Take your protection to the next level. Bontrager Specter WaveCel offers the best in versatility and comfort for everyday rides on roads, trails, gravel and more. From dirt to road, fast or slow, this new wave of protection delivers the confidence you need wherever you ride or race. WaveCel is a collapsible cellular structure that lines the inside of the helmet. This Bontrager-exclusive technology disrupts the safety standards that the industry has accepted for over 30 years.