Features of the Pearl Izumi Men's Attack Thermal Jersey Select thermal fleece fabric with 4-way stretch provides exceptional freedom of movement and warmth Full-length vislon zipper for ventilation and ease of use Modern design lines create a perfect on-bike silhouette and integrated style Gripper elastic with silicone print holds the jersey in position Three back pockets plus additional single zippered back pocket for securing valuables Fabric Details 83% Polyester, 17% Elastane