Polartec - Synthetic midlayer fleece which offers excellent comfort, insulation and durability. * Front Zippers - Helps to stimulate airflow, allowing the jacket to breathe, keeping you cool when you need it most. * Open Mesh Internal Construction - Helps the air to flow between parts of the jacket, ideal for intense activities. * Polyester Shell - Helps to trap heat and retain insulation. * Side Zip Pockets - Offer secure storage for small items.