@onepaddle...the volume, or fluid capacity of the flask is 2.5 fluid ounces. The weight of the empty flask is 45 grams, or 1.6 ounces. A typical "shot" of liquor is 1.5 fluid ounces, so the flask holds about two, slightly smaller (1.25 fluid ounce) shots, or one big bulldog shot...hope that helps...

2.5 oz looks likethe weight of the flask. I would guess the capacity at 5 or 6 oz. Maybe somebody who knows could comment on the capacity of the flask.

Obviously, jaz2942919, you don't own the flask and are simply commenting negatively about its size. Please allow me to suggest that, if you're buying this flask to distribute shots to customers, you might be using the wrong tool. It looks just right to me for a quick nip each night on a weekend trip. In fact, that's why I just purchased it.

well 2.5 oz is 2+ night caps of single malt, which is something one might have to sneak to the (dry) in-laws house. Gotta be titanium, glass or plastic to not make your drink taste like metal. This fits the bill.

Would I take it on a 5 day trail-fest? No.

Anyone try to get one of these past TSA? I heard they can confiscate items not labelled with the volume. But at least it's under 3oz, no? Sadly, so many plastic containers could take its place, though not with such panache.

I'll be honest. i think its way too small. even if you are sippin not gulpin you are gonna run out of cough syrup after the 2nd night of campin. i think snowpeak kills this flask is volume, unfortunately i dont have a trust fund to buy one. i wish this were a 6 oz. it could be better no doubt about it.

as the recommended use describes.... its for sippin, not gulpin. if your stuck in some forsaken place like deadwood south dakota, and wishing to do the old miner style shot slammin, i hope there is a generous bartender around to help you get your drunk on.