Thermo-Regulating Technology for High-Output Pursuits The Vigor Beanie is a performance layer geared toward high-output mountain activity. ActiveTemp™ technology adjusts to body temperature to ensure cool, dry comfort during high-exertion activities. This beanie fits perfectly under a ski or bike helmet and keeps the head and ears warm and protected while actively exploring alpine or other cold weather environments. A perfect choice for climbers, hikers, and cyclists looking for a versatile, weather-resistant layer that is comfortable and breathable, the Vigor Beanie is ideal for active use.