






🥃 Elevate your sip game with the flask that’s as bold as your lifestyle.
The Stanley Classic Easy Fill Wide Mouth Flask is an 8-ounce, matte black, BPA-free stainless steel flask designed for durability and convenience. Featuring a leakproof hinge-connected cap and a wide mouth for easy filling and cleaning, it combines rugged functionality with sleek portability. Perfect for professionals and adventurers alike, it comes with a lifetime warranty, ensuring it’s built to last a lifetime.



































| Material | Stainless Steel |
| Color | Matte Black |
| Brand | STANLEY |
| Finish Type | Stainless Steel |
| Product Dimensions | 1.5"D x 3"W x 7.5"H |
| Shape | Rectangular |
| Item Weight | 3.2 ounces |
| Item Volume | 0.23 Liters |
| Model Name | Classic Easy Fill Wide Mouth Flask 8oz |
| Manufacturer | Stanley |
| UPC | 041604328008 |
| Global Trade Identification Number | 00041604328008 |
| Item Package Dimensions L x W x H | 7.52 x 3.11 x 1.54 inches |
| Package Weight | 0.17 Kilograms |
| Item Dimensions LxWxH | 7.5 x 2.88 x 1.25 inches |
| Brand Name | STANLEY |
| Country of Origin | China |
| Warranty Description | Lifetime manufacturer |
| Suggested Users | unisex-adult |
| Number of Items | 1 |
| Part Number | STA0837123 |
| Style | 8 oz Classic Easy Fill Wide Mouth Flask |
| Included Components | flask |
| Size | 8 oz |
B**O
Sleek, Stylish, and Perfect for On-the-Go!
My husband asked for a flask for Christmas, and we chose the Stanley black flask—and he absolutely adores it! From the moment he opened it, he was impressed by the sleek design and classic matte black finish. It’s compact, comfortable to hold, and fits easily in a pocket or bag, making it super convenient to bring just about anywhere. Despite its slim profile, it feels sturdy and well-made—classic Stanley quality. It’s also easy to open, fill, and clean, which makes it not only stylish but practical too. Whether he's taking it camping, tailgating, or just keeping it handy for a special occasion, it’s been the perfect gift. If you're looking for a flask that's as good-looking as it is functional, this one is a winner. Highly recommend!
M**N
Nice flask
Nice flask, good quality
P**R
Great size, classic design and great flask.
Tried two other flasks but did not like them. One had a large mouth opening and was too fat to fit in the places I carry a flask. Another had nothing to hold the cap and that was a pain in the you know what. This is like the Goldilocks of flasks. Not too big, not too small, just right and a classic shape.
K**R
Another excellent Stanley!!!
This is easily the best flask I've got. I have quite a few, but I always end up using this bad boy! It's extremely durable and the seal on it is very reliable. No leaks here! I've found that it's pretty easy to clean also which is saying alot considering the small opening on flasks in general! It's very stylish and I've gotten quite a few compliments on it. It's also a very affordable flask compared to others I've bought. Don't hesitate if you're thinking about grabbing one!
S**6
Faulty flask/great customer service
Got this flask in January of 2025 and used it several times without issue. Lately however, I've noticed that the lid is increasingly difficult to open and close, and last week it got to the point where I could not unscrew it at all. I contacted Stanley and submitted a warranty claim, which they processed in only a couple of days. They are now sending me a new flask. Excellent customer service, which is why I'm giving the flask a 4-star review. Deducted one star based on the fact that the lid did jam, rendering the flask useless. I may further update this review, depending on how the new flask performs.
S**D
yeah... I have 4 of these.
Due to me moving often and never having all my items accessible I've bought this 4 times due to how well it works. I'm not complaining I have 4. The wide mouth is so much nicer than needing a funnel and it's easier for me to clean. I find it stylish long before the stanley fad became a thing. I keep this one close and fill it with my favorite mezcal and it fits well on my person. Only thing I will tell people is to clean the o-ring in the cap and don't double thread the cap. I've only gotten one straight from the factory like that but they did ship me a new one no questions asked.
B**D
No Leaks!
I love this large capacity no-leak flask! Perfect for my "coffee sweetener".
I**O
Trash, and the warranty is a lie.
Worked great... once. Evert time since, I need pliers and a hand towel to crank it open. No, I'm not cross-threasing the cap. It goes on smooth, then twists partway open and gets stuck. The issue seems to be with the seal, which doesn't allow even a teeny bit of air in (which is necessary for the cap to open) So, after much struggle and frustration, I filed a Stanley Warranty Claim. No response. Tried again, submitted all the info and proof of purchase and photos etc... nothing. I literally only bought THIS flask because of the warranty and reputation. Clearly both are mere illusion.
J**A
De las licoreras que he tenido esta ha sido la que más me ha gustado hasta el momento, su diseño. Adquirí la de color negro. Para llevar a cualquier lado un buen vino, whisky o TEQUILA de tu agrado discretamente, no esperes utilizarlo para bebidas frías o calientes ya que no es un termo. Llego en tiempo y forma. No te arrepentirás! Recomendada al 100%
J**E
I purchased this for my fiance for Christmas. It's perfect. Easy to fill, easy to pour or drink from. Highly recommend!
チ**ズ
酒を瓶で持っていくのが億劫だったので購入 雰囲気アイテムと言ってしまえばそこまでですがとにかくかっこいいので気分が上がるアイテムです
B**H
I have been looking for a sleek portable flask to carry my liquor or sometimes coffee with me when I’m travelling or out for a short walk. Came across this Stanley flask and it’s just perfect for my needs. Keeps drinks cold or hot for at least 4 hrs.
S**J
Un poco grande, pero la calidad es excelente
Trustpilot
2 weeks ago
5 days ago