This Military V-neck down jacket uses Soft Shell (soft outer fabric). It is lighter and softer than the conventional Military Line and feels very comfortable to wear. The slit zipper on both sides, which is a feature of the Military Line, increases the range of motion, making it easier to move around, making it easier to put your hands into the bottom pockets, and allowing you to enjoy layering. TAION is an inner down wear brand that originated from Japan. They have developed high-quality, high-performance inner down vests that can maintain 'Taion' which means 'body temperature' in Japanese. The inner is constructed from Down (feather) using the feathers of mature waterfowl. (90% down, 10% feathers) Feathers are light and have good resilience. The outer material uses super water-repellent high-density nylon fabric, which is not only water-repellent but also stain-resistant. In addition, an AC coating is applied to the back surface of the outer material to minimize feather blowout.