Our smallest Black Hole® Duffel, with a 40-liter volume that's perfect for small loads and long weekends, is made with 100% recycled body fabric, lining and webbing. This carry-on sized duffel meets most airline and train carry-on requirements. Extremely Durable, Weather-Resistant, 100% Recycled Fabric: Made from lightweight yet extremely durable, 100% recycled polyester ripstop with a TPU-film laminate to create a fabric that’s weather-resistant, abrasion-resistant and highly packable; lined with 100% recycled polyester with a tough polyurethane coating. Full-Access Main Compartment: Top zipper allows bag to open wide for quick access to the entire main compartment; when empty, duffel stuffs into its own pocket for compact, self-contained storage. Removable ergonomic padded shoulder straps let you carry the Black Hole® Duffel like a backpack and can be detached when not in use; reinforced haul handles are durable. Accessible Internal Organization: A zippered side pocket can be reached from the outside or inside of the bag; a mesh interior lid pocket keeps essentials organized and close at hand. Padded base protects the contents of the duffel from rough terrain and hard knocks Meets most airline and train carry-on requirements: This carry-on-sized 40-liter duffel meets most airline and train carry-on requirements. Body: 14-oz 900-denier 100% postconsumer recycled polyester ripstop with a TPU-film laminate. 930 g (2 lbs 0.8 oz) 21" x 13.7" x 10.6" 40L (2441 cu in)