Acerbis PROFILE 2.0 17757 black-red knee guards. Protective knee guards for enduro use or for city use over a pair of trousers. They have: - Plastic protection for the knees. - A soft, comfortable lining in an anti-allergenic, breathable fabric. - Pre-shaped, with an asymmetric design for comfort and fit. - Vents to increase the airflow. - Adjustable double straps with a Velcro closure. - EN 1621-1 / 03.