Intelligent cold weather protection is a matter of mind: lightweight hat insulated with innovative Polartec Alpha for face paced tours. High stretch Polartec Alpha at the forehead and ears serves as a breathable insulating layer and, in conjunction with the extremely breathable knitted material at the top, it creates a comfortable microclimate for your head. Reflective elements ensure visibility in the dark. The hat can also be worn as cold weather protection under a helmet. The bluesign standard guarantees environmentally friendly materials. This product features Eco Finish, a flourocarbon free (PFC-free) textile finish that provides environmentally friendly water repellency.