Patagonia'sBLACK HOLE DUFFEL 40L is the most compact travel bag in the Black Hole Duffel collection.

Sturdy and extremely weather-resistant, this model is made from polyester ripstop material with a TPU laminate for effective weather protection and durable water-repellent treatment. The 40-liter main compartment features a U-shaped zippered opening, with two zippered mesh pockets under the flap for small items that can easily get lost. What's more, the zippered exterior pocket provides quick access to the things you need most often, while the padded bottom keeps the bag in shape and protects its contents from shocks inflicted by baggage handlers.

This bag offers several carrying options: removable, padded backpack straps and sturdy canvas handles with snap closures. Also, hardware straps allow you to carry more gear on the outside.

And if you don't need to use the bag, it folds into its exterior pocket for compact storage.