Castelli womens donnina rain jacketcastelli seriously stepped out of the box when they were designing the donnina totally waterproof shell first off it breathes our exclusive ultra lightweight 70g event fabric lets out the sweat at a remarkable rate second it fits fits like a cycling jacket not a mountaineering jacket third it packs down small probably much smaller than the rain shell youre currently using to fit in a pocket when you dont need it finally we gave it details that