Leather Flask, 8 oz: Two Cups, a Funnel and 304 Steel


From the Amazon listing.
Men's Leather Flask (Brown) with 2 Cups and Funnel $34.95 ยท 4.6โ ยท 107 Amazon reviews
An 8 oz 304 stainless steel hip flask under a smooth PU leather wrap, boxed with two pony shot glasses and a funnel. The wrap is synthetic and we say so; the steel is what decides whether a flask is any good.
304 stainless steel inside
The body is 304 stainless, the same grade as a good kitchen sink or a bar shaker. Two things about it matter to you. It carries enough chromium to hold a passive oxide layer1, so it won't rust when you forget a mouthful of bourbon in it overnight. That film repairs itself in air, which is the whole reason a flask you rinse and leave open stays bright while one capped wet for a month doesn't. And it's close to inert at the acidity of spirits, so what you pour out of this whiskey hip flask tastes like what you poured in. Metallic aftertaste comes from cheap plated bodies, not from this grade.
The seam is laser-welded instead of soldered, which is what you want in any stainless steel hip flask. A solder line is the first place a flask weeps. Excalibur Brothers states the flask is air-pressure tested and leak-proof; that's the brand's claim about its own production, not a number off our bench. What the build tells you by itself: a welded 304 body with a tight screw cap is the one that stays dry in a pocket. Carry it cap-up anyway.

Capacity is 8 oz, about 237 ml: five standard 1.5 oz pours, or eight of the pony pours the cups in the box measure. If you're weighing 6 oz against 8, the sizes are laid out in our hip flask size chart.
The PU leather wrap: what you're actually buying
This is PU leather. Polyurethane on a backing, wrapped around the steel. It isn't hide. It won't darken with handling or take a patina, and nobody inherits it in forty years with a story in the grain.
Here's why it's on the flask. PU wipes clean with a damp cloth, so spilled rye doesn't soak in and live there. It never needs conditioning. It's lighter and much cheaper than a full-grain wrap, which is most of why this set lands at $34.95. And it grips: bare steel in a cold hand at a November wedding is a dropped flask waiting to happen.
The honest limit is that PU is a coating, and coatings can lift or craze at corners and edges under heat and hard use. A hide wrap gets better with the years; a synthetic one holds steady and then gives up. If that trade is the whole decision, read leather vs stainless steel flask first.

The set: two cups, a funnel, a wooden case
A bare leather wrapped flask is something you buy for yourself. This one arrives in a hinged wooden presentation case with two stainless pony shot glasses, roughly 1 oz each, and a small funnel. That's the difference between an accessory and something you can hand over.
The cups are the underrated part. A flask on its own is a solo drink and a slightly furtive one. Two cups make it a round, which is the actual point at a tailgate or in the hour before a ceremony.
The funnel isn't packaging filler either. Getting 80-proof anything out of a 750 ml bottle and into a mouth that narrow is how you lose an ounce down the side.
The case is why this reads as a groomsman or father-in-law present. Nobody gift-wraps a flask; you hand over the box. Other things in that vein sit in our gifts for men roundup.

How to choose a leather flask
Four things decide it. Price is the last one.
- Capacity. 6 to 8 oz is the pocket range. 8 oz is the top of it: enough to share, flat enough for an inside jacket pocket (how to carry one). Bigger rides badly in a suit.
- Closure. Look for a captive cap on a hinge or short chain, with a gasket inside it. A cap that comes fully off is a cap you'll leave on a bar.
- The wrap, labeled honestly. "Leather look", "PU leather" and "bonded leather" mean synthetic or scrap. "Full-grain" and "top-grain" mean hide. Either can be the right buy; a seller who blurs which one you're getting has told you something useful.
- Weight and shape. Curved bodies sit against a hip, flat ones disappear in a jacket. Wrapped flasks run a little thicker than bare steel, so check the pocket you actually wear.
For how flasks get carried and used, start at our hip flask guide.

Cleaning a leather flask: wipe the wrap, wash the steel
Two materials, two jobs. The wrap gets a damp cloth. No conditioner, no solvent wipes; PU absorbs none of it and solvents can haze the finish.
The steel gets warm water, a drop of dish soap and a long rinse, then dries cap-off and upside down. Do that the day you empty it and you'll never meet the smell of whiskey that sat for a month. The full routine is in how to clean a hip flask.
Keep it out of the dishwasher. Heat plus detergent lifts the wrap off the steel, and it doesn't go back on.

Questions people ask
Is it legal to carry a flask?
Owning and carrying one is legal. What you do with it is governed by open-container laws2, which vary by state, city and venue, and by whoever runs the stadium, park or train you're on. Check the local rule before the event, not after. This isn't legal advice.
What do you call a leather flask?
A hip flask, usually, or a pocket flask. "Leather flask", "leather hip flask", "leather whiskey flask" and "leather wrapped flask" all point at the same object: a flat metal flask under a leather or leather-look cover. The leather is never the container, only the skin over it.
How long can you keep spirits in a hip flask?
Empty it within a few days. High-proof spirits won't spoil in 304 stainless, but the flavor dulls3 as they sit in a part-full flask. Sugar, dairy, citrus and anything carbonated shouldn't go in at all; they turn or build pressure.
What material is best for a flask?
Stainless steel, 304 or 316. It's non-reactive and cheap enough to be built properly at a normal price. Titanium is lighter and costs several times more. Pewter and silver look the part but are soft and need polishing. Leather and PU are covers, not containers.
Sources
Every figure, rule and date above traces to one of these. We link the body that issued it, never someone's summary of it, and we don't link anyone who sells what we sell.
- University of Cambridge โ Phase Transformations and Complex Properties Research Group, Stainless Steels โ corrosion and the passive film. Checked 20 Sep 2026.
- Legal Information Institute, Cornell Law School, 23 U.S.C. ยง 154 โ Open container requirements. Checked 20 Sep 2026.
- National Library of Medicine, PubMed Central (Foods, 2020), Influence of Alcohol Content and Storage Conditions on the Physicochemical Stability of Spirit Drinks. Checked 20 Sep 2026.
Read next



