[It... does and doesn't. Metal he gets, but rubber? Plastic? Anyway, he summons a stick to draw the outline Watanuki's traced in the air, and he peers down at it.]

So it's a flask of sorts. [The temperature won't remain cool if there's metal... so this plastic and rubber maintains it? Hmm.] What sort of materials are the other two?

[And really -] You've told me as much, yes. I'm simply wondering why this is the current state of your stamina if you have that much practice. I understand that modern transportation is... different from what it was, but not how that affects things like exercise.