For additional protection, the Zaca Air Jacket has DFS Lite external shoulder sliders as well as Nucleon Flex Plus CE Level 1 rated armor on the shoulders, elbows, and forearms. Internally, the jacket sports a detachable 2L waterproof liner to use when the weather gets cooler as an additional windbreaker, and which is particularly handy for riders that get caught in the rain. The detachable hood comes with an air extraction channel on the top to allow airflow to pass through and prevent it from filling up and flapping around while on the bike. The Zaca Air provides a versatile, highly ventilated, and protective riding jacket for sporty street riders in need of optimal comfort on warmer days and complete body mobility and freedom of movement. Zaca Air Jacket