Alpinestars - Jacket GP Plus V4 AirflowThe GP Plus R v4 Airflow Jacket is engineered and optimized for maximum ventilation and airflow and features extensive race derived features and materials including a dedicated Sport fit with pre curved arms for maximum riding performance, and race proven protection on the shoulders and elbows. Vented shoulders and extensive perforation zones on the chest and sides for maximum airflow. Alpinestars composite stretch technology, A CS Plus, stretch