Castelli Espresso Air Jacket When cycling conditions are cold and mostly dry, the Castelli Espresso Air Jacket delivers impressive warmth and breathability. With Ristretto Warm fabric, you get the benefits of a warm and fleecy interior paired with just enough airflow to prevent you from overheating or getting soaked in sweat. Ristretto Technology A new clothing technology for creating warmth when cycling in winter while keeping you sweat-free. Ristretto fabrics allow an imperceptible amount of air to pass through, so you won't even notice it. But this air permeability allows jerseys and...