The 7 Best Flasks
Updated by · How we research
Seven hip flasks compared on caps, leaks, fill openings and materials, from steel and glass to a soft pouch. The Stanley Easy Fill wins for its wide mouth. When users buy our independently chosen editorial picks, we may earn commissions to help fund the Wiki.
Nearly every hip flask is made of the same food-grade stainless steel, so the metal rarely decides anything. The cap and the mouth do: a sloppy thread leaks into a jacket pocket, and a narrow neck spills whiskey without a funnel. These picks suit a first flask, a replacement for a leaky one, or a gift for a groomsman.
Editor's Notes
October 26, 2026, by Ezvid Wiki Admin:
The Stanley Easy Fill now leads this list, and it comes down to its mouth: the opening is wide enough to fill straight from a bottle, which fixes the spills that come with most narrow-necked flasks. The Gennissy 8 oz gift set and the Vapur After Hours pouch stay.
We dropped the Stanley Master Wide-Mouth because it's an insulated bottle rather than a hip flask, the Stanley Adventure and Visol Edinburgh because both have left the market, the BarMe Shots on the Go and Cork Pops Nicholas Portside for thin current evidence, and the Barbuzzo AR-15 as a novelty. The GoPong Sunscreen went too, since we no longer list containers built to hide alcohol. The older GSI flask gives way to the GSI Outdoors Boulder.
The new picks answer what readers ask about: the dishwasher-safe Yeti 7 oz, the Ragproper Glass for anyone who tastes metal in steel, and the Viski Mirror Silver for a dressier gift. Two outdoor and lifestyle guides that compared flasks side by side, plus a long trail of owner complaints about leaky caps and peeling coatings, did most of the sorting. Two big-selling budget black flasks missed the cut because pinhole leaks and scratched coatings keep coming up.
February 19, 2021:
We got rid of the Primo Liquor Premium, as it appeared to be no longer available, and also decided to do away with the Stanley Easy Fill, recognizing that our list already included two more options from the company, and feeling that, since the Easy Fill’s design was so close to that of the Stanley Adventure, it didn’t make sense to list both. We also added two new options to our list.
Our first new addition was the Barbuzzo AR-15, which is designed in the likeness of an assault-rifle magazine. I’m sure there are plenty of full-blooded gun enthusiasts out there who would be happy to use this option as an everyday-carry unit – if you really want to go all out, you could bundle it together with some of those whisky stones that look like bullets – but we also included it for the benefit of users who might purchase it as a novelty item — perhaps as a gag gift for their anti-gun neighbor, who knows. In any case, it’s affordable enough that you shouldn’t’ need to be heartbroken if they don’t think the gift’s as funny as you do.
Our second new addition has a much more universal appeal. The Gennissy 304 is an eight-ounce, stainless-steel model that’s wrapped in a faux-leather sleeve and comes with three, half-ounce shot glasses. Despite being quite affordable, it’s actually a relatively classy looking choice, and can be ordered in a presentable box for a small additional charge. I’ve actually ordered a couple of these myself and given them away as gifts. It’s amazing how a bottle of liquor, which on its own might be received as a thoughtless last-minute present, suddenly becomes a thoughtful and considerate gesture when you package it with one of these. Just a tip.
If you found your way to this page, there’s a good chance that you enjoy a drink, or you’re looking to get a gift for someone who is. In either case, you might be interested in checking out our lists of whisky glasses, whisky decanters or even ice cube molds.
July 19, 2019:
Whether you're looking for one flask to fool 'em all, or a beauty to wear proudly on your hip, we've tried to include a varied bunch that'll offer something to everyone. If you're looking for a traditional hip flask, you have a few options to pick from, each with its own appeal. The Primo Liquor Premium (#2), the Visol Edinburgh (#5), and the Cork Pops Nicholas Portside (#6) take the cake as far as stylishness is concerned.
Stanley, the industrial tools & household hardware company, happens to make rather well-made flasks that can take a beating, and for this reason we've included 3 of their products on our list. Outdoors enthusiasts and ham-handed klutzes alike will likely want to look towards the rugged Stanley Adventure (#4) or the Stanley Master Wide-Mouth (#1).
Finally, we included the BarMe Shots on the Go (#3) high on our list despite its rather standard build-quality. The reason we did this is because of its collapsible cup and included funnel, which make the flask-using experience much less messy. In fact, we were surprised that we didn't stumble upon more models that provided such convenience.
Special Honors
Snow Peak Titanium Curved Flask Titanium doesn't rust and doesn't flavor spirits, and Snow Peak's curved titanium flask holds 6.4 fluid ounces while weighing about 2.5 ounces, according to the maker, with a case and funnel included. It costs several times a good steel flask, and at least one retailer lists it as discontinued, so check the maker's page for stock. snowpeak.com
High Camp Flasks High Camp makes insulated, electropolished stainless steel flasks built for sharing rather than for a hip pocket. Its Firelight Flask 750 takes a full standard bottle of wine or spirits, and the smaller Torch Flask has a steel shot glass built into the cap and a bottom that unscrews for cleaning, according to the maker. highcampflasks.com
Steel, Glass, Plastic Or Titanium
A standard U.S. shot is 1.5 ounces, so a 6-ounce flask holds about four and an 8-ounce flask about five.
Almost every flask here is 18/8 stainless steel, also sold as 304 grade. It's food grade and it doesn't rust, and in a cheap flask the weak spots are usually the cap threads and the welds rather than the metal itself. Spirits left in steel for days can pick up a faint metallic edge, a point both Man of Many and Explorersweb make. High Camp, a flask maker, blames thin, low-grade steel and hard-to-clean shapes for most of that off taste (High Camp Flasks).
Glass, like the Ragproper Glass, keeps the taste clean but can break, so it comes in a silicone sleeve. Clear plastic, like the GSI Outdoors Boulder, is light and survives drops, though plastic can hold onto smells. Titanium is inert and very light, which is why camping writers rank it near the top, but a titanium flask costs several times a good steel one.
Capacity is simpler than it looks. A standard U.S. shot is 1.5 ounces, so a 6-ounce flask holds about four and an 8-ounce flask about five. Bigger flasks exist, but past 10 ounces most stop fitting a hip pocket, and a tall flask such as the Stanley Easy Fill suits a jacket better than jeans.
Fill It, Don't Store In It
A flask is for carrying a drink, not for keeping one. Explorersweb advises against leaving liquor in one for more than about three days, and wine and cream liqueurs are worse: they turn and leave stains and smells behind. Skip fizzy mixers too, since pressure builds behind the cap.
Fill over a sink with a funnel unless the flask has a wide mouth. Leave a little air at the top so the cap seats cleanly. Before the first use, wash a new flask with warm soapy water and rinse it well. After each outing, rinse it with warm water, shake it out and let it dry upside down with the cap off.
Only the Yeti 7 oz and the Vapur After Hours are sold as dishwasher safe on this list. Keep wrapped flasks like the Gennissy 8 oz out of the dishwasher, since heat and long soaks are hard on the wrap. If a flask starts to leak, check the cap's rubber or silicone ring first: it can twist, harden or go missing, and the Ragproper Glass ships with spares.
Where You Can Carry A Flask
Open-container rules are state law in the U.S., and they vary. Federal highway funding rules push states to ban open containers in a vehicle's passenger area, and 39 states plus Washington, D.C., comply (Wikipedia: open container laws). A flask counts as a container, and one that's been opened can count as open, so if you're driving, keep it sealed in the trunk, and never drive after drinking.
Most places also ban drinking on public streets, and stadiums, concert venues and cruise lines usually ban outside alcohol outright. That's why this page doesn't list containers disguised as sunscreen or other everyday items. The legal drinking age is 21 everywhere in the U.S. This is a summary, not legal advice, so check local rules before you carry.
How we researched this
We compared 18 flasks from 13 brands across steel, glass, plastic and soft-pouch designs, read makers' specs and care notes, two independent flask guides from Explorersweb and Man of Many, and patterns in owner feedback, with extra weight on leak and coating complaints, and we checked every brand for recalls with the U.S. Consumer Product Safety Commission. We found no lab leak tests for most of these flasks.
Frequently asked questions
How many shots does a flask hold?
A U.S. shot is 1.5 ounces, so a 6-ounce flask holds about four shots and an 8-ounce flask about five. Most people don't fill to the brim, so plan on a little less.
Does whiskey go bad in a flask?
It won't spoil, but spirits left in steel for several days can pick up a metallic taste. Fill it for the outing, empty it after and rinse it. A glass flask avoids the taste.
Can you put wine in a flask?
For a day, yes, but wine goes stale fast once it meets air and can stain and scent a flask. Rinse it right after. Whiskey, rum, brandy and vodka travel better.
Is it legal to carry a flask?
Owning and carrying one is legal for adults 21 and over, but open-container and public-drinking laws vary by state and city, and many venues ban outside alcohol. In a car, keep it sealed in the trunk.
How do you clean a flask?
Rinse with warm water, add a drop of dish soap if needed, shake, rinse well and let it dry with the cap off. Use a dishwasher only if the maker says it's safe, and never with a leather or faux-leather wrap.
Is a glass or steel flask better?
Steel is tougher and won't break. Glass keeps the taste pure but can shatter, so look for one in a protective sleeve and leave it home on rough trips.
