From the one comment I ' ve read , you can only use it in the postgame and only over the Lucis continent . Hopefully someone who has actually completed the game can confirmdeny this . <| sep |> That ' s quite a well written report report . pdf <| sep |> Same old reply If you plan to also use this for EDC school , office , gym then 34 L . If you ' re tall andor tall waisted , you may be able to get away with 40 L . For carry on and groceries only , 40 L . If I was 6 ' 3 , no doubt I ' d go big just because I could . Since I use mine for EDC and groceries and am 5 ' 11 , I chose the 34 L . It is maybe 6 from my butt unloaded . 40 L would touch , loaded . 34 L holds an 18 carton of eggs square in the base of the main compartment , for more reference . And a 10 kg bag of flour at the same time , with the eggs on top rather than bottom lol . This in addition to a hat and gloves , 10 pens and pencils , and the equivalent of five multitools . And it ' s not a tight fit nor cumbersome .