The newly reengineered 5-star Allpa 50L Duffel uses recycled fabric and carries even more comfortably. The backpack shoulder straps are now easier to remove or reattach, and the added stuff sack provides for easy duffel storage between trips that can double as a bag for shoes or laundry. Meanwhile, the durable yet lightweight fabrics—now made from recycled materials—are as burly as ever.