Description This Assos winter cap boasts double-knit layers of circular seamless fabric for optimal warmth and breathability. The new design accommodates long hair comfortably, while the breathable insulation protects your forehead and ears from the cold. Stay comfortable and sweat-free on your winter rides with this improved fit. Product Features Featured Fabrics Constructed with a double layer design, this circular seamless material allows for optimal breathability while trapping body heat to effectively insulate against the cold. Construction/Fit Designed to comfortably accommodate riders with longer hair, the Assos Winter Cap features Double Layer construction that provides double insulation to the forehead and ears, offering extra protection to these vulnerable areas. Size Guide Measure around your head just above your ears. I | 21-23 inches / 51-58cmII | 23-25 inches / 59-63cm