The Alpha Doppio RoS Jacket updates the Alpha RoS 2, already described asat the cutting edge of what winter cycling jackets can achieveby Cyclingnews.com. It boasts softer, warmer insulation and improved openings, for better weather protection than ever.The foundation of the Alpha RoS is its ability to keep out the great majority of rain and all wind, while also offering comfort and breathability, thanks to its double-layer construction. Thus, you can open the outer weatherproof layer when you are powering uphill, to allow heat and moisture to escape, while retaining the warmth of the inner layer. Then, once you head downhill, or if the rain starts, you can shut that outer layer to keep off the wind and stay dry.The Alpha Doppio RoS improves on this premise by using luxuriously snug Polatec® Alpha Direct for the inner layer, as well as tweaking the arrangement of the waist, neck and wrist.The former has been updated to a stretchy layer with silicone bead that lies flat, without bun