A member of Millet's genre crossing mountaineering, climbing, and ski touring lineup, the men's Trilogy PrimaLoft Jacket is made with world class materials designed to keep top athletes warm and comfortable when they're in the mountains, no matter what they're up to. The Trilogy is constructed from Pertex Endurance fabric, which offers thermal protection and resistance to moisture, and is packed with PrimaLoft Sport insulation to provide a superior warmth to weight ratio and warmth that won't vanish when the insulation gets wet. The highly packable Trilogy is ideal for stuffing into packs and making the most out of that precious room during your adventures, but it's not totally bare bones, either. The helmet compatible mountaineering hood cinches down tight without obscuring your vision, and the drawcord hem and hook and loop cuffs seal out wind, spindrift, and icy drafts. Millet also gave the Trilogy two hand pockets and one zippered chest pocket to keep small items handy, so you don't need to dig through your pack.