No matter whether we are cross-country skiing or trail running, the Smartwool Merino Sport Fleece Training Beanie is our go-to head warmer for high-output winter activities. This beanie uses a merino wool blend to give us optimal warmth, comfort, and moisture-wicking properties and has a three-panel design for an optimal fit. Both the front and the back are reflective for better visibility once the sun goes down, and the temple openings allow our sunglasses to stay on our face without having to tuck them under the beanie.