Hiking backpacks are mostly described in liters (L) but may also be labeled in cubic inches. The easiest way to visualize the particular capacity within your backpack in liters would be to recognize that a standard Nalgene h2o bottle is just one liter. SIGN UP FOR TEXT Information ALERTS I https://armyrucksacks93603.mybjjblog.com/the-backpack-for-travel-diaries-44705780