Your body&';s core is your main source of heat, and our women&';s Source Heavyweight 1/4-Zip takes advantage of it all. Fit for you, it combines both soft fleece and high-performance synthetics to create the warmest base layer top we make. With the women&';s Source Heavyweight 1/4-Zip and Source Heavyweight Bottom as your base layer, you&';ll spend your next icy hunt in complete comfort, and be ready for more. Keep warm on your next cold-weather hunt with Source gear from Badlands.