UK company Berghaus made the first move towards water resistant down with their Mount Asgard Hybrid Jacket launch last fall. Now Sierra Designs has jumped on board with their new DriDown technology, working to eliminate one of down's main shortcomings.
Down has a better warmth to weight ratio than synthetic insulation but basically fails as soon as it gets wet. In the quest to build the perfect warm, lightweight alpine jacket, Berghaus created a water resistant down insulation to be used in cold, damp conditions.
