Black Diamond’s warmest PrimaLoft Gold synthetic-and-down insulator, the Cold Forge Men’s Hooded Down Jacket throws down serious warmth with a packable, low-bulk design. PrimaLoft Gold is made up of 70% down and 30% synthetic insulation, so you get the lightweight, high-loft properties of down with the water-resistant warmth of synthetic, meaning you’ll stay as warm in soggy conditions as on perfectly dry days. Even so, Black Diamond treated the Pertex face fabric and lining with DWR coatings to repel water, because you don’t want to get wet if you can avoid it. The Cold Forge is also cut slightly longer than most of Black Diamond’s jackets, so you’ll have extra coverage against drafts, snow, and nasty alpine cold. A drawcord hem gives you a further draft-defeating boost, and the adjustable and helmet-compatible hood keeps you cozy whether you’re skiing on a frigid January morning, hunkering down in a snow cave, or deciding which bar you’re going to check out after a long day in the mountains. Black Diamond also gave the Cold Forge five thoughful pockets, so you can have easy access to all your small gear.