Ideal for cold-weather running and other outdoor activities, the Brooks Notch Thermal Beanie 2.0 offers exceptional lightweight warmth. Optimized for cold weather, this beanie fits securely and comfortably, staying put throughout your warm-ups and layering. The sweat-wicking fabric ensures dryness and comfort, even during the most intense workouts. Plus, the odor-resistant fabric guarantees freshness run after run.