For demanding climbs in cold weather, the Men's Summit Breithorn Hooded Down Jacket provides essential warmth without unnecessary bulk. Filled with 800-fill ProDown™ insulation, it maintains excellent loft and insulation even when damp. The helmet-compatible hood and raglan sleeves ensure unrestricted arm movement, while underarm gussets enhance ventilation during intense activity. When temperatures rise, the jacket compresses into its own pocket for easy storage. Crafted with recycled materials, it also supports environmental sustainability by reducing plastic waste.