The Featherweight Vest was designed with 2 principles in mind: Comfort and Versatility. For the fabric, we used an extremely lightweight nylon to achieve the soft hand-feel and "feather-like" weight of this vest. The Featherweight Vest is versatile to outfit the full spectrum of the "Onward Reserve Lifestyle": sporty enough to throw on for a round of golf or a fall tailgate but is still refined enough to wear out on the town with a pair of five pockets and button down.