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This guide breaks down the warmth levels and technical details of Rab’s current down range, helping you compare models at a glance. From ultralight options built for fast-moving alpine missions to fully waterproof expedition-grade insulation, we’ve listed key specs, including fill weight, fill power, and notable features, for each jacket. We’ll also explain the key factors that d …

Down is still the number one insulating material in the outdoor industry, offering the lightest warmth to weight ratio and unrivaled packability. Therefore, a down jacket will provide exceptional warmth but won't weigh you or your pack down. Choosing a down jacket depends on how warm you need it to be and what features you need it to have.How Warm Should It Be?Our lightest down jackets weigh less …