The Castelli Emergency 3 Rain Jacket is built to keep you protected when the skies open, whether during an unexpected downpour or on a full day of wet-weather riding. Constructed from Castelli’s new 3-layer Deluge fabric with a 20,000 mm water column, it delivers complete waterproof protection while remaining thin, light, and highly packable—easily fitting into a jersey pocket or bikepacking bag. At 215 g, it combines a performance stretch fit with a regular cut that sits close to the body without restricting movement, while the knit polyester inner layer ensures comfort directly against the skin. Fully taped seams, a waterproof zipper, and 360° reflectivity add to its all-day protection and visibility, making the Emergency 3 Rain Jacket the ultimate reliable shell for wet rides in temperatures from 5°C to 18°C (41°F to 64°F).