Filson, the Seattle based outdoor clothing company makes some of the most rugged clothing available. They’ve teamed with J. Crew to create an exclusive field bag, the Filson Rugged Twill Field Bag ($375). The bag is made from cotton twill with wool accents on the flap and the front two pockets. It measures 12″H x 13″W x 4 1/2″D and may be the last bag you ever need.