Take on brisk winter runs in the Echo Hoodie from Outdoor Research. Your torso and head will stay warm as the polyester wicks away sweat and the fold over mittens convert to keep your fingers toasty as you rack up the miles. But this shirt isn't just ideal for running-in fact, this hoodie will be your constant companion for early alpine mornings in the backcountry, on the drive to yoga class, or on your pre-workout warm-up.