The SmartWool PhD HyFi Training Beanie is great for the winter time and cooler weather. The strategic three-panel construction provides a bulk-free fit with ultimate comfort and warmth. With the front and back reflectivity you will be seen when you are out for your early morning or evening run. This beanie has the lightweight feel of a headband with the added warmth of a beanie. Made with Merino Wool that SmartWool is known for, you know your head will stay warm when wearing the SmartWool PhD HyFi Training beanie. [+]