Introducing the tough Mackinaw Wool Filson Field bag. Filson’s been at this game for over 100 years so they’ve learned a thing or two about crafting top quality rugged gear. This Mackinaw Wool Field bag features a generous main compartment, an expandable full-width open rear pocket, two expandable front pockets and two side pockets. Made with Filson’s oil finished Tin Cloth, Genuine Bridle leather, reinforced bottom with Le Chameau’s natural rubber and the signature virgin Mackinaw wool top flap. Made in the USA and available here.