North Butyl Glovebox Gloves have the highest resistance to permeation by gases and vapors. Butyl provides the highest permeation resistance to vapors and gases, as well as exceptional resistance to a broad range of toxic chemicals, making it the only suitable glove choice for many critical applications. Butyl also has a soft and flexible feel, even at low temperatures, which reduces hand fatigue and enhances worker comfort. Solvent based, multi-dip manufacturing process provides multiple layers of polymer (like a glove within a glove) which results in a glove of superior quality.