Alpinestars - Jacket GP Force AirForce Airflow Leather Jacket is the new airflow version of the existing GP Force Leather Jacket. Featuring a fully perforated chest and back, soft buffalo leather main construction with extensive polyamide stretch panels, the jacket is also protective with its external DFS Lite shoulder sliders and internal Nucleon Flex Pro CE Level 2 armor. Featuring a removable windbreaker liner, the GP Force Airflow Jacket can be easily adapted to the weather