Montbell Pocketable Daypack Black Approximately 33 x 22 x 10 cm A thin, lightweight, and compact daypack that folds up small and is very convenient. My elementary school-aged daughter used it when she went to Disneyland, and it has been stored unused since then. Although it's small, adults can also use it. A slightly larger size is listed as 10L on the website, so I think this one is probably around 8L. Please take a look at my profile and consider purchasing.