I use six of these to organise all my clothes in the Arc'teryx Carrier 55 duffle; containing sweaters, shirts, trousers and pants, joggers and shorts, accessories, and spare bedding respectively. The seventh lives in the Nanu X25.
Volume: 9 liters (four of these) Size: 16.5 x 32.8 x 11.4cm Weight: 34 g
Volume: 13 liters (three of these) Size: 16.5 x 32.8 x 16.5cm Weight: 37 g