The Marmot Men's Isotherm Insulated Jacket keeps you warm, dry, and, most importantly, ready for action when you take it into the mountains for some hiking or climbing or both. A combination of ultralight ripstop fabric, softshell panels, and low profile insulation allows you to climb comfortably while still keeping you warm while you're belaying. Polartec's Alpha insulation is the U. S. Special Forces' go to insulation for dynamic missions, so you know you can rely on its warmth when you're summiting. Softshell panels give the shoulders and sleeves excellent breathability and a four way stretch for uninhibited mobility, while the Pertex Quantum shell provides windproof protection in an ultralight fashion. Angel Wing Movement ensures freedom of movement when you're reaching for the anchors.