Castelli Alpha ROS Jacket

The Alpha RoS Jacket takes the guesswork out of what to wear for any given type of weather. With the RoS (Rain or Shine) design the goal was to make the best-in-class garment for dry, cold weather but offer protection should it rain, without the need to revert to another waterproof jacket layer. This was achieved through new fabrics that offer increased breathability but with improved waterproofness too, as well as clever design details that keep the water out yet provide ample breathability and ventilation. Read more…