Castelli Alpha Ros W Light Jacket - Silver Gray/Black - XL 0D_UVPI1SCD

Castelli may call the Alpha Ros W Light Jacket 'light', but the range of conditions that it thrives in is remarkable. It will keep you comfortable in temperatures where you might normally dig out your full weight jacket, and yet the exceptional breathability ensures it's still ideal on days when you might otherwise have worn arm warmers and a gilet in the past. AND it keeps you dry.RoS stands for 'Rain or Shine'. What does it mean Well, for a start it's a label that only Castelli's most technically advanced products are awarded. And every RoS product must excel both in the dry or the wet. In the dry, that means serious comfort and real breathability to avoid perspiration making you cold and damp. And in the wet, it will keep you warm and dry whilst still letting the heat and sweat out efficiently.The Alpha RoS W Light Jacket fits the bill comfortably on both fronts. The material offers cutting edge rain protection, and Castelli have managed to reduce seaming and sealed the seams where sensible for keeping the wet out in all conditions barring prolonged monsoons! According to Castelli, this is 'functional waterproofing' - it's essentially the best possible balance that they can achieve between water repellency and breathability. And in our experience of the Alpha Ros Light, that's a pretty spectacular achievement.