The Fission SV is the warmest glove in the Arc'teryx collection. It combines the proven performance of the Fortius™ 1.0 with a waterproof, breathable GORE-TEX lining for complete weather protection. PrimaLoft® Silver and Gold insulation provide maximum warmth, while the additional Octa® Loft lining adds breathability and next-to-skin comfort. Together, these fabrics provide improved moisture management and ease of donning and doffing. For added strength, two layers of premium goatskin leather reinforcements maximize durability. Elastic cuff bands adjust to fit snugly around the wrist, and drawcords for opening and tightening the cuffs keep out water in severe weather.