The Alpinestars A-1 Pro Chest Protector is an ultra-lightweight protective system that offers complete protection. It features a Level 1 CE and UKCA Certified Polyhedron Hybrid Technology chest and Polyhedron Technology back protector. 18% of the chest protector's structure consists of ventilation apertures, and these are aligned through both layers of the hybrid structure to ensure maximum ventilation and airflow. The A-1 has extended padding to offer more protection without obstructing arm movement, with adjustable and removable shoulder pads and back protectors for high levels of personalisation. It is adjustable throughout with an adjustable elastic closure system with quick and easy-to-use buckles and adjustable shoulder straps for optimal fit. This is compatible with Bionic Neck Support with elasticated BNS pull tabs for easy and safe engagement of the BNS.