A large duffel that’s built for travel and collapses to fit inside a larger travel bag or roller luggage when not in use. Pack it with you and use at your destination as a lighter-weight pack. When you’re not traveling this is a great daily use bag for the gym, beach, or when you need a bit more space. The Navigator Collapsible Duffel 42L has plenty of room when you need it, and for when you can’t fill the entire bag, compression straps help secure your contents and provide better weight distribution.