The Castelli Gabba RoS is a new cycling shirt for men, which has positively changed cycling in colder and wetter conditions. Castelli started with a clean slate for this fourth generation Gabba and they have made significant changes. The specially developed GORE-TEX INFINIUM fabric is virtually waterproof, giving you good protection against wet weather conditions. This fabric has been made warmer and lightly brushed on the front, while the fabrics on the back are lighter and more water-repellent. At the back, this cycling shirt has plenty of stretch and breathability. With taped shoulder seams and a YKK Vislon lapped zipper, the Castelli Gabba RoS provides even better protection against wind and rain. Based on tests with professional INEOS Grenadiers, it was decided to add 2 larger back pockets to this cycling shirt. Making them more accessible while wearing gloves. A back pocket with zipper for extra safe storage is missing on this cycling shirt. On the inside of one of the back pocket is a slot, where you can easily store your pump and other stuff. To ensure better visibility, the extended back is equipped with a large, black reflective insert. The Castelli Gabba Ros does not only offer better protection in wind and rain but increases your safety as well.