The Montane Men's Fireball XT Hooded Jacket is designed for high-intensity activities in challenging environments. Its Vector Lite 40D outer fabric ensures high air permeability and maximum breathability, preventing overheating during movement. The Featherlite Air inner fabric adds to this by offering 2-way stretch for enhanced mobility and comfort. To keep you warm during sustained efforts in cold conditions, the jacket features thoughtfully selected recycled polyester insulation. This makes it an ideal mid or outer layer for cold-weather mountaineering and climbing adventures.