Thoroughly inspected by Toby.
If you want to be sure that all your belongings stay dry during a trip, the Ortlieb Duffel 40L Yellow is a good choice. This travel bag is 100% waterproof. With a capacity of 40 liters, you can take enough things with you for a long weekend away. The bag consists of one large compartment with a zipper compartment on the inside. The bag has a packing strap to keep your belongings in place. You can carry the bag by hand or on your back, because the bag has double shoulder straps. Thanks to its compact size, you can take the bag with you as carry-on luggage with most airlines.