Castelli's Alpha RoS 2 jacket provides warmth, breathability, softness and a high level of rain protection in a comfortable fit.

It's also perfectly resistant to wet conditions thanks to its GORE-TEX INFINIUM ™ WINDSTOPPER® fabric and waterproof seam bands on exposed shoulder areas. Other seams don't come in direct contact with the flow of water, and the water repellent treatment on the fabric is enough to keep almost all moisture out. We call it "just the right amount of waterproofing," as the goal was to strike a balance between waterproofing, breathability and comfort. We don't guarantee that no drops will ever enter the garment, but when we go on long rides in a good rain, we stay completely dry.

  • Designed to be worn at temperatures between -5° and 10°C.
  • GORE-TEX INFINIUM ™ WINDSTOPPER® 150 fabric that provides wind protection, high breathability and effective rain protection.
  • Fewer seams with some sealed seams on the shoulders to keep water out.
  • Double-layer Alpha construction separates the insulation layer from the wind/moisture barrier to better regulate ventilation.
  • Easy on/off water-resistant YKK® Vislon® zipper allows for better airflow regulation.
  • Raw edge waistband with windproof silicone waistband.
  • Double-layer cuff seals in the glove to keep out cold wind or water.
  • Stretch fabrics with advanced construction provide an excellent, close fit that accommodates a wide range of body sizes.
  • Ventilation in the back.
  • 3 back pockets with laser-cut reflective drainage holes.
  • Secure zippered side pocket for your valuable belongings.
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