Osprey's philosophy for travel is simple: Make it easier to organize and pack your gear when travelling so that you can spend more time enjoying your experience.  Do your workout clothes smell like a yeti? Separate your clean and dirty gear with the Osprey Ultralight Double-Sided Packing Cubes. Features and Specifications Dual-zippered compartments for dirty/clean and dry/wet storage Non-mesh side hides odiferous garments and contains messes Mesh side provides breathability Volume5 Litres Weight 50 grams Dimensions (cm)25cm h x 18 w x 10 d Fabrics Main: 40 Denier Nylon RipstopAccent: 40D Nylon RipstopBottom: 40D Nylon Ripstop Osprey Ultralight Packing Double-Sided Packing Cube - Size Medium