The Emergency 3 Rain Jacket uses Castelli's 3-layer Deluge fabric with a 20,000 mm waterproof rating. It features a soft knit polyester inner face and a stretch fit for unrestricted movement. Fully taped seams and a waterproof zipper ensure complete protection. It is highly packable, fitting easily in a jersey pocket or bikepacking bag. The jacket includes 360° reflectivity for visibility in low light conditions.