Keeping your hands warm without wearing gloves while maintaining fine motor dexterity was the primary goal of the Handwarmer attachment. The Handwarmer attaches to the bottom of both the Recon and Bravo Modular Bino Harnesses, keeping your hands optimally positioned for comfort while sitting or standing. Additional air-activated hand warmers can be stored in the front zippered pouch, where an included waist belt is also kept. This waist belt allows you to use the Handwarmer attachment independently.