Though it rides literally undercover, the right base layer can be one of the most versatile and important items in your cold weather kit. It can extend the weeks you're able to wear your favorite short sleeve jersey and even provide jacket like warmth when paired with a thermal jersey or any of the new breed of water resistant, race cut super jerseys. Santini's long sleeve Wool Base Layer meets our criteria for an excellent base layer and would make a hardworking addition to any winter ensemble. Santini blends insulating wool with synthetic fibers to create a durable, lightweight layer that manages temperature by wicking moisture away from your skin, making sure you don't encounter a damp chill after a tough climb. With its classic Italian design, this base layer will be right at home in the coffee shop as you shed layers to sip a post ride espresso.