MONTANE Alpha Guide Outdoor Jacket - AW16 PERTEX Microlight Stretch Fabric - Windproof, showerproof, fast drying and features an exceptional durable water repellancy to help the wearer stay dry. POLARTEC Alpha Insulation - A remarkable, hyper breathable and highly packable insulating fill that will help the wearer stay warm at all time. Mt. Thermo X Stretch - With a brushed fleece inner, anti-pilling outer face and high stretch for dynamic body movement. Flatlocked Sewn Seams - Through Mt. Thermo X Stretch areas for extra comfort and durability. PEAQ Synthetic Liner - That is supremely comfortable next to the skin, highly breathable and fast drying.