The Helly Hansen H2 Flow Jacket combines different fabrics in a unique construction for optimal performance. 200-gram Polartec® brushed-fleece jacket features air-pocket perforations. The polyester shell locks heat inside these air pockets. Open mesh inside allows airflow between the air pockets and the body during intense activities. Zippers in front allow mechanical ventilation and stimulation of airflow. Imported. Sizes: S-2XL. Colors: Black, Midnight Purple, Racer Blue.