Castelli Alpha Ros 2 Green Jacket The Castelli Alpha Ros 2 Jacket redefines protection with its waterproof YKK® zipper and GORE-TEX INFINIUM™ WINDSTOPPER® fabric, offering a shield against wind and rain without sacrificing breathability. Protection and Comfort in Any Weather Equipped with a high-quality YKK® waterproof zipper , the Castelli Alpha Ros 2 Green Jacket is synonymous with durability and ease of use. Advanced Weaving Technology GORE-TEX INFINIUM™ WINDSTOPPER® fabric guarantees an effective barrier against adverse weather while maintaining optimal breathability. Grip and Safety Silicone print on the palm improves grip, essential for safe cycling, while reflective details increase visibility in low light conditions.