Filson's 'Durable' Duffel Bag-Backpack Hybrid That's the 'Perfect Size' for Daily Use Is a Very … January 8, 2025 Bryan Delay Articles Filson Duffel Backpack Hybrid 46L in Otter Green Ballistic Nylon, $261 (was $349) at Huckberry · Recommended articles. Source: Backpacking & Water Filtration