I'm surprised and very happy with this bottle. First off, it's titanium (if you're looking at this product, you probably already know about how awesome this material is). I was halfway expecting this bottle to be easy to dent like the other titanium bottle I bought from this company over a year ago, and even if it does do that, it's a trade-off for the lightweight... it's worth it to me. However, they've beefed up the most-likely-to-dent points for this bottle! It feels solid to me, nice attention to detail Keith Titanium!Now here's the awesome thing with this bottle... The ingenious use of a silicone insert (that stays put, horray) in tandem with a little vent at the top of the cap (see pictures). You all nailed this! It's such a simple thing to keep clean/clear and prevents altitude changes from affecting the bottle. It's like the vargo titanium bottle, but better. The risk to this sealing system would be losing the silicone seal, but that seems hard to do and also easy to replace if it happens.Nice product overall, I'm using this daily as well as for trips like backpacking, hiking, etc.

I bought both sizes. I love the wide mouth, so it is easy to clean. I wasn't familiar with the "bayonet" term for the cap closure, but it is easy to close and makes a tight seal. One unexpected bonus is the very nice carrying sleeve with shoulder strap. These are lifetime purchases, well worth it for the quality and very elegant practicality.

excellent construction!!

Top notch quality, smart design, the skillfully designed cap has avoided the drawbacks of titanium cap scrubbing titanium body, and the drawback of having to have a plastic cap. It's on the expensive side, but it worth every dollar. If you hike often, this bottle is a must have. Highly recommend!

The Keith titanium liquid bottle is beautifully made and very lightweight. The lid closure worked perfectly with no leaks or spills.it’s great for transporting liquids but falls short in insulation value as the metal soaks up the hot and cold making the supplied carrying case mandatory equipment.

Entirely plastic free and super light weight, does not impart any flavor to my water and is the perfect size for my daily carry. I like to bring spring water to work and this size is enough that if i drink one before work and then bring it full along with me i can last nearly my whole shift and stay hydrated throughout the day. I like the carrying harness and it should be great to bring camping too.If i was going on a long hike in hot weather i would need a little bit more spare water in the car, i used to carry a 64oz steel bottle but this size is so much easier for general carrying in daily life and very suitable for hiking still in my opinion

It seems a little expensive But it's Great! I fill it with RO water and it is very good tasting. Very Light the top seals good, no leaking. I may buy another one. If you are thinking about it... Buy it. It works jut like it's supposed to. The case is nice but I don't use that right know.

Excellent bottle. Others have said one has to be careful with the cap and put it on correct otherwise it could leak. Have they updated the bottle? Because I’ve had no trouble with the cap at all and the cap isn’t a fiddle to get on. This is the perfect size for me, well built - should last a lifetime and more. Best of all water tastes amazing from this - no plastic.

4 years later and it is in perfect condition (JULY 2025). This is a high quality product. If you are so lazy and forget things everywhere you go, avoid buying this bottle as the price is high, but water does not get any other taste but the original one. Stainless steel one change the taste of the liquids.

Amazingly lightweight, robust and easy to open/close.Sizing (diameter) means it fits perfectly into the, by now ubiquitous, 750ml "bail handled pot" in use by almost every "bushcrafter" out there (although it fits even better into the almost impossible to find taller "Campleader" 900ml titanium bail pot - of which I have two).The secret? it 'isn't' a 900ml bottle! Pour in water to a reasonable (2cm from the brim) level and then measure the amount and ... it's 1000ml (1L). So? it is 'perfect' for using all the chemical treatments out there too.Simply (paired with a titanium bail pot) this is the 'ultimate' lightweight bushcraft/camping bottle set-up! (and it fits, at 18cm tall, in all those 'normal' water-bottle pouches we all have, instead of needing some gigantic specialist pouch - I use a Helikon Tex "essentials pouch).[Oh, and if you worry about the longevity of the silicon cap seal, don't. it lasts for years of daily use and ... if you simply must replace it, use the easily available silicon 'cooking' sheets and cut out the size as needed. it works perfectly, for pennies].

Bought 2 of these for my hiking backpack and I love them. Use them at work in the supplied carrying case and when I hike they fit perfectly into the Nalgene sized side pockets. Super light and strong. I have one hand on concrete multiple times. They have small dents but still function great. The quarter turn lids are very cool, just make sure you get them on straight or there will be water everywhere. Cool to have the option to boil water in them with the cap off. Happy with the purchases.

Title says what I wanted to say. It’s a one function piece of gear, and these days I look for multi function whenever possible. If you want to cook with it, there’s no handle. If you want to backpack, it’s bulky and doesn’t compress (smart water bottles paired with a sawyer squeeze filter are better & replaceable). The total weight is actually 7.7 ounces for the one I received and the total weight with the holding pouch is 10.5 ounces. I do like that the holding pouch helps to keep cold water cool for a couple of hours.All the above being said, this is a high quality canteen, and I’ve used it for years with no trouble with the cap as others mentioned. Just be sure to practice putting it on correctly when you get it.It’s still in great condition, so I’m planning to sell it now that I’m downsizing all of my gear to go on backpacking trips.

I have quite a few titanium water bottles. Keith are by far the best. Valcan are good too, but these are the best. I love the lid. I bought 3 extra silicone gaskets on eBay for cheap. It should last 5 lifetimes!

For those that want a replacement gasket, you can find them on eBay. Yes, it is very expensive, but worth every penny!I'm very sensitive to taste, especially plastic! Every drink from this bottle is pure water taste. I'll never own another plastic bottle.

Good quality but a lot more expensive than similar products on Amazon. Only for the elite titaniasts...🧐

I have a lot of water bottles/canteens. I have a thing for Ti. Love it.Went through a bunch of double wall stainless bottles. They work great, just tired of the weight and size.I have the Heavy Cover/Keith Ti canteen and mess kit and use the canteen cup the most of all my pots and cups for coffee and hot water for freeze dried stuff.Have the smaller Keith Ti water bottle too. It is a nice bottle, but I found I was always running out of water/refilling it.I can go longer and have more water with this bottle, and I can throw it in my EDC bag without the size and weight penalty of the stainless bottles.No leakage at all, nice wide mouth for filling/cleaning.I like that I can boil water in it for sterilization, which is not possible with the stainless bottles.Yeah it’s not cheap, but it’s Titanium and will last forever.

I bought this for my son, it's perfect for his daily use at school, but I really it could be a bit smaller and fit into a cup holder in the car

The lid doesn't turn well sometimesBut overall satisfiedLight and large enough capacity

It is more than a piece of spaceship that will last longer than most houses.It is the perfect bottle for the clean freak, the home chef, or anyone with a keen sense of smell.1. Besides the silicon gasket, the entire thing is made of titanium.2. Every 3 days I boil the gasket in water and clean the rest of the bottle by fire. Perfectly sterilized.3. Say goodbye to bottles made of cheap (plastic, rubber) materials that smell suspicious after a day.The cap actually works perfectly and contributes to the cleanliness.1. It is just as secure as traditional caps but works much faster, and is ambidextrous.2. Because of its simple structure, it is much easier to clean, by water or fire.3. Why don't other bottles use a similar design you ask? Because for it to last without deforming from repeated use, it requires the material to be very strong. Only titanium will do.One nitpick for Keith Titanium: please make the replacement silicon gasket for this bottle available on Amazon. I would like to have a backup. Thank you!

This is a great titanium bottle. It doesn’t leak, is lightweight, and I can put it directly on the stove or in the fridge.This is single walled and not meant to be an insulating cup. The sleeve it comes with works fine to keep your hands from being burned or cold depending on the temperature of the liquid inside, but the sleeve is tight and a little difficult to remove. It also fits perfectly inside old oatmeal cans which does the job as well.Note that when exposed to sufficient heat, titanium turns a rainbow of colors. It is perfectly safe, and doesn’t damage the titanium at all. I heat anodized mine into a beautiful blue which will scratch off over time, but can be renewed with a second application of heat. The vibrant colors I was able to get mine to turn also let me know this is a high grade titanium, as promised.Mine has very quickly replaced both my kettle and daily water bottle. I can even cook meals in it! I will be returning to Keith for more of my cookware as I can afford it.Keep in mind when you first get it you will want to wash it a few times and let it sit filled with water overnight. Pour that water out the next morning, wash it one more time, and you won’t have any problems with taste.

湯たんぽ代わりにするために購入しました。ぬるくなったら直接火に掛けて暖めなおすことも可能です。ボトル自体に保温性はありませんが、朝まで暖かい感じが残っています。寝起きで白湯を飲むことができます。口が大きいので洗うのも簡単です。お湯を満タンにしないとお湯が冷めたときに気圧が下がってパッキンが膨らみますが気圧調整用の穴が開いているので蓋が開かなくなることはありません。パッキンの形状が特殊なので耐久性が心配です。予備のパッキンだけの販売を希望します。

I really enjoy this water bottle. It’s extremely light, and nests with my snow peak 600 cup. The only issue I have is that the scraping noise it makes when opening and closing the bottle. Another issue is that if the cap doesn’t seat properly, it will cross thread and leak, which has happened on a recent trip. Other than that, it is a really visually appealing water bottle compared to my nalgene or yeti that I also own.

It works great for heating water with some mindfulness of its hot surface. I use pliers to pour it. Cap works well. Replacement seals on websites. I would purchase again.I'll update this after using many times in the backcountry. Sometimes, the lid leaks unless I screw it on with some thinking - titanium is sort of gritty. However, it's very easy to use this way and then does not leak. I use it with a backpacking Japanese table for better stability in the dirt and for boiling water. It's great and saves me maybe 5 ounces for not having to carry a separate kettle - and less to keep track of and store in my pack. I recommend it.

You won't regret the purchase.The carry bag is excellent quality.

great insulating, I use it primarily for cold drinks