"What Our Gearhead® Experts Are Saying: ""I stash the Chrono Wind Jacket in my jersey pocket for spring and fall rides when the weather can turn fast. It blocks wind and light chill without overheating thanks to the mesh ventilation. The two-way zipper is great for controlling airflow on climbs.""Cool mornings and breezy descents call for a layer that keeps us moving comfortably. That’s why we rely on the Giro Chrono Wind Jacket. Lightweight and easy to pack, this jacket delivers wind resistance without sacrificing breathability, thanks to mesh panels that let heat escape. Its performance fit ensures it layers cleanly over a jersey, and the two-way front zipper lets us fine-tune ventilation on the fly. Whether we’re riding through shifting spring weather or heading out for an early start, the Chrono Wind Jacket is the layer we trust to keep us ready for anything."