The key piece in your wicked-weather kit, Simms' new DOWNStream Jacket blends 750-fill, DWR-treated down with PrimaLoft Gold synthetic insulation for premier on-the-water performance. Warmth when and where it counts stems from down feathers placed in essential thermal zones combined with body mapped 100-percent high-loft synthetic insulation in the lower sleeves for boosted comfort/mobility. Ripstop Pertex Endurance outer architecture bucks rain and beats wind. Finally, duck inside the three-point adjustable storm hood for full-time warmth. Fitted comfort and go-get-it style come standard.