Ultra-lightweight and insulating zip-up jacket with innovative moisture management. The zip-up jacket Montane Fortes Nano is your must-have for training in cold weather, offering the perfect blend of warmth, protection, and lightweight performance. This innovative running tunic features a lightweight insulated jacket design, made with a durable ripstop nylon exterior. It is designed to be exceptionally windproof, protecting you from biting winter winds without weighing you down. Inside, the highly breathable APT lining actively manages moisture, keeping you dry and comfortable even as you push your limits. What truly sets the Fortes Nano apart is its strategic use of PrimaLoft Gold Active+ insulation. This advanced insulation offers efficient warmth in all conditions, and it is smartly distributed throughout the jacket to concentrate warmth where your body needs it most, while reducing overall weight. The result is a warm running jacket that provides targeted warmth and freedom of movement, allowing you to stay focused on your pace. Technology Mini ripstop Barrier Tough exterior (1.6 CFM wind resistance/air permeability). DWR without intentional use of PFAS chemicals Insulation PrimaLoft® Gold Active Vent designed for thermal efficiency, breathability, and moisture management Air permeability technology Breathable 10D ripstop nylon lining that maximizes breathability (10CFM) and insulation Offset seams Enhances construction, durability, and comfort Body-mapped insulation 40 g insulation in the body, arms, and hood. No insulation under the arms to reduce bulk and maximize breathability Materials Exterior: 100% nylon (recycled); Lining: 100% polyester (80% recycled) Suitable for: Hiking, Walking, Trekking, Fastpacking, Trail running Fit: Athletic - Close to the body for active users moving fast with extra articulation Model: Size 10. Height: 5'10'/178 cm, chest: 36'/91 cm