Comfort starts at the source. If your next-to-skin piece doesn&&';;t perform, you&&';;re in for a bad day. The Source Heavyweight Bottom is the heaviest weight bottom in the Badlands lineup and features a fleece and high-performance synthetic material to keep your body at optimal warmth levels throughout your hunt. Combine it with our Source Heavyweight 1/4-Zip and be ready for anything Old Man Winter throws at you on your next cold-weather hunt.