Stanley Master Series Unbreakable Hip Flask .23 Liter Foundry Black 1.0 mm 18/8 Stainless Steel LeakProof Packable Wide-mouth opening Machined steel cap Dishwasher safe Unbreakable

Well made. The wide neck makes it easy to fill and get a good swig. The coating is thick and shouldn't chip too easily. The only fault: as mentioned in other reviews the cap isn't knurled so can be an effort to open with wet fingers. Still, best hip flask I've seen and should definitely cause envy round the camp fire.

Well made. Usual Stanley quality. I like the black texture on the flask. It makes it very grippy. I can’t see this slipping out of your hand easily. The only thing is Stanley says it has “Machined steel cap knurled for easy grip”. This is not the case. Yes the cap is machined but it is not knurled. It has a nice brushed stainless steel finish. I don’t think this will be a big factor to most people but it’s just an fyi in case you require the extra grip for opening/closing the flask cap.

I just love well designed products. From knifes to utensils, cars, watches. When you see and hold this flask you can tell the designers thought about every single detail, from materials to daily usage.Perfect.

Arrived promptly, looks good with nice wide neck for ease of filling/drinking. Got approval of 18y old son!

Very sturdy and has a wide neck which makes it dead easy to fill up without a funnel etc. The perfect chairlift companion. Need another one now for the other pocket!

I bought this to replace my 6oz hipflask that has served me well for years. This flask feels well built, however the cap is totally flawed when you want to open it. You can not turn the cap 360 degrees without catching on the cap retainer. In the first image you can see how my thumb catches on the latch. You could simply twist from the top but as there is no knurling trying to open a smooth grip container is hard when the cap is screwed tight, compounding this, the latch band around the cap sticks out the same width as the cap, so when you try to turn the cap, your grip is partly on this band that of course wont turn. Simple recessing that band a little and adding knurling would of solved that problem... Lastly, the bottom of the flask tapers inwards the last 2cm, this means the flask is top heavy and is more likely to fall over on a surface that is not totally flat. The designer probably thought it would slide into pockets easier that way, however is small enough and smooth enough that that design feature is not needed, should of just stayed with a flat bottom.

It is a hip flask, it's massively over engineered and I love it. Yes it says "vacuum" in the description and yes that is an error, but I didn't expect a vacuum hip flask! I got what I expected.. A HIP FLASK!

Great hip flask. Large top making refilling or direct drinking easy. Very strong, well built.