The Montane Men's Anti-Freeze Hooded Down jacket is that one insulator you'll bring on any adventure with a chance of cold temperatures. Whether you're spending summers alpine climbing or ski touring all winter, the Anti-Freeze warms you up when you're cold and packs away when you're warm. Its 750-fill down insulation ensures lightweight warmth that's easily packed into the supplied stuff sack for compact storage. Montane treated the down with HyperDry for hydrophobic weather protection, and the Pertex Quantum Eco shell adds windproof, water-resistant protection to the mix.