MONTANE Lite-Speed Running Jacket - SS17 PERTEX Microlight Outer - Windproof, fast drying and features a remarkable durable water repellent finish. French Seams - For extra strength, quality and weather resistance. Articulated Arms - For superior range of motion and tailored specifically to reduce hem lift. Roll-away Hood - For quick access when the weather takes a turn. Soft Fleece Beardguard - Encircles the face and mouth for added comfort.