The ALPINESTARS MTB Protector Jacket LS Paragon Pro features a back protector insert made from a high-performance polymeric material blend for optimized flexibility and exceptional weight-saving properties. All inserts are highly perforated for maximum breathability and ventilation. The new easy-injection-molded compound inserts are designed to provide optimal airflow and ventilation. Ergonomic protection plates conform to the natural curve of the back, ensuring an optimal fit during your ride. It is BNS-compatible when used with X- or A-Straps. Whether you're hitting rugged trails or cruising through smooth paths, this protector jacket offers the perfect blend of safety and comfort, keeping you protected without compromising mobility. It's an essential for any serious mountain biker aiming to maximize their performance while ensuring top-notch safety.