The Navigator Collapsible Duffel from Nomatic has a 42L capacity and is ideal for traveling. The straps allow you to carry it as a duffel or a backpack. It has ample space so you can pack what you need, and you can also compress for better security and weight distribution. Secure smaller items in the zippered interior pocket, which acts as a quick access pouch when the bag is collapsed. It fits easily into a larger bag or suitcase when collapsed and is useful for travel, trips to the gym, or outings at the beach. You can also hook it to another bag with the attachment loop.