Castelli elemento 2 7xair jacketwith the double layer front you have far greater control over ventilation and when youre working hardest you can open the external zip to allow airflow to dry the thermal layer its hard to imagine until the first time you crest a hill and close the zipper back up and realize youre totally dry youve never felt anything like it features castelli exclusive 7xair quilted fabric with windshear insertsfleece lined for warmth with separate fleece layer on fron