A key part of our comprehensive All Weather apparel System, the Flexair Pro Fire Alpha Jacket arguably features the highest level of versatility for nearly all types of cold weather riding. Using proven Polartec(R) Alpha (R) insulation as the foundation, the Flexair Pro Fire Alpha Jacket features adaptable breathability which helps eliminate the need to shed or add layers while riding in varying conditions. The main body features our highly breathable 10,000 mm and 30,000 gram rated material which allowes the Alpha insulation to work at it's maximum levels furing even the hardest and longest cold weather rides. Cordura fabric has been added to provide improved durability while trail riding and functional pocketing has been included to insure the vest is versatile enough for nearly any ride. Designed to work with multiple other styles from our all weather system collection, the Flexair Pro Fire Alpha Jacket is one of the best investments you can ever make for your mountain bike riding experience.