Outdoor Research Helmetclava The Outdoor Research Helmetclava is something that both men and women can use to keep warm in the cold, bitter winter weather. It has a WindStopper shoft-shell fabric that is located in the face and neck areas to provide the utmost protection from the cold. A soft, insulating Motion Fleece fabric is located at the back of the neck to enhance warmth. The crown and ear panels have Thermodynamic fabric that fits smoothly under a helmet without bunching up, and it also does not block out sound from your ears. Sweat and moisture are able to escape, thanks to its breathable fabric and laser die-cut breathing port. The materials used to make this product are 68% nylon, 26% polypropylene, and 6% spandex. Protect yourself with the harsh, cold climate with the Outdoor Research Helmetclava.