The castelli pav jacket is made from an ultralight microfiber performance fabric for wet weather protection castelli have collaborated with event to create a lighter version of the fabric that they supply to some worldtour teams with a close cut design for improved aerodynamic performance the pav jacket features fully taped seams and a waterproof ykk vislon zipper for optimal protection complete with an extra long tail for additional spray protection silicone gripper elastic at the wai