The FOX MTB Flexair Pro Fire Alpha® sets a new top-level standard and is the ideal companion for all your climbs and descents. The proven ratchet closure guarantees a secure fit and allows quick adjustments on the go. The breathable insulation ensures you no longer need to add or remove layers. The super-light, moisture-wicking TruDri™ fabric reliably keeps you dry, while the robust, water-repellent DWR coating protects against moisture, dirt, and mud. The outer fabric consists of 88% Nylon and 12% Spandex. Insulation: Polartec® Alpha® made from 100% Polyester.