Sitka Core Merino 330 Bottom is a must-have addition to any late season hunting outfit. Its made from heavyweight merino wool – a material that provides greater warmth with less bulk. The interior features a recycled synthetic lining to move moister away from your skin to keep you warm and dry, and a natural resistance to body odor helps keep you undetected. In addition, the Core Merino 330 Bottom features Sitka’s ArmourSpun design for years of durability.