Not the lightest, but can you put a weight limit on your most important survival necessity? Mountaineers, steer clear of aluminum bottles since they are delicate and not supposed to freeze. Also, these wide mouth versions are the least likeliest to freeze shut on you, and I have seen bottles that 'chubbed up' from freezing too many times and are still unbreakable.

If you are simply jumping on the 'Go Green' bandwagon and need an everyday bottle, pick up a 27oz steel Klean Kanteen--Backcountry.com has a cool logo one. But if you're mean and green, well, this is the Hulk of water bottles.

I never have had a Nalgene, i always perfered steel or aluminum bottles, but I added this to my order to boost myself to free shipping. Very glad I did. Extremely lightweight, durable, and does a good job of not holding smells(as long as you wash it after use). Being this is my first one, and its a BPA free, im glad i waited so long. The blue looks really good, i like the measurements on the side(which i never got with my metal bottles), and carries enough water for me and the dog for a good length hike. Highly recommended.

I bought two of these bottles, one for my wife and one for myself. The bottle is great! This is the first BPA free bottle I found that will fit my water filter. My wife swears that water tastes better out of the Triton. I agree, it doesn't have the plastic aftertaste. I needed new Nalgene bottles anyway - the old ones were getting a little worn. I just hope for more color options in the future.

Good for carrying most all liquids. Doesn't get a funky stench as often as my old bottles. The bottle will not crack or break and you'd REALLY have to work hard to break the plastic holding the cap to the bottle. I like knowing it's BPA free! The red and blue colors look sweet.

I am pretty much in love with my Nalgene. It's a great bottle for a long hike, holding plenty of water and maybe some ice cubes on the scorcher days. It holds together a lot better than my Sigg bottle (which is also a good bottle) because it won't dent at all, and there isn't any paint to scratch. I carry mine everywhere, to class, to work, in the ski lodge, and at the climbing gym or the rock face. You can throw in those flavour packets for water, and have no fear of it holding the taste or smell. I highly recommend this bottle.

Used for the first time on a VERY COLD 3-night camping trip and this water bottle was great as: a) I could attach my friend's water filter to it when filtering water from the lake and b) it doubled nicely as a hot water bottle in below freezing temperatures!

The bottle is the same great bottle as the BPA ones but without the whole cancer deal. Well the same except for the quality of the paint used. I have Nalgene bottles that are well over 10 years old and their paint still is on there, however the new bottle I got the paint was alredy starting to flake off when it arrived. B/C offered me a refund if I shipped it back but it's not worth paying for the shipping just for paint.

Another great product from Nalgene. I use it for work, home, hiking, backpacking, traveling, working out, you name it. One doesn't have to worry about the BPA issue either. Even though there are mixed reports on the levels of BPA that are safe/unsafe, I figured it was better safe then sorry. Got ride of my 3 year old bottles for these and recommend them. Same durability as their previous lineup.

love love love these bottles!!!

This is a another of multiple reviews prasiing the Nalgene. It is simply essential gear for any outdoorsman, and a great every day water bottle. It also stays smelling nice and fresh for months. This may sound gross, but I got this new upgraded BPA-free Nalgene in September, it is now the end of April, I use it every day...and I have never washed it! Ladies I am sorry that is gross, but as an unintentional science experiment I have proven the odor fighting ability of Nalgene. It still smells great and has no stains or buildup, like every other review a great choice in the water bottle department.

It does that which you need it to do. Cheaper than some of the more expensive models, but gets it done for me at the gym.

I love every nalgene bottle I own. They make nothing but amazing products. Great for every day use & adventuring of all sorts.

Great bottle, I've used it to hold boiling water while melting snow and it didn't even get soft. These work well for medical kits too, just throw everything in and strap it to your pack.

Yup, whoohoo ... its another water bottle ... I normally just grab a gatorade bottle cleaned out but i picked a pair of these up for the widemouth and loop lid ... The lid screws on just fine, doesn't leak ... i tried ... I was curious how impact resistant it really was and drop'd it from standing height to simulate a trip and drop of the bottle ... about 5-6 times and even angled the bottle's bottom to the tile ... Good as new, no cracks or chips ... The best feature ... it holds water! Go figure.

These things are great for whatever you want to carry and want it to still be there when you get to where you are going! The wide mouth bottles are great for in the winter, no freezing to your lip like some metal bottles and the wide opening makes sure you can still get something to drink on those really cold days. You can't go wrong with the Nalgene bottles!

Seriously, hundreds of other people have said all the praise that needs to be said for these bottles. The only other thing to note is the no 'plastic' aftertaste with these new bottles. Keep it up Nalgene!

This thing is great. Can't say much about it except that its tougher than the aluminum bottles and I guess I can't complain when it stinks since I hardly ever wash it.

There is not much to say other than these water bottles are very reliable and easy to fill.

One of the best purchases I've made so far (until something else is found in these type bottles). There is no funky aftertaste like some of the metal water bottles I've tried.

What can you say It's vintage Nalgene quality and is extremely dependable. Was used along the Appalachian Trail.

After the tragedy of having to throw away my BPA ridden nalgene, I had to resort to buying bottled water. Now that I have my new BPA Free Nalgene, I'm happy as can be and don't need to spend $15-20 per week on bottled water.

This bottle is exactly what you'd expect from Nalgene. It's a basic, wide mouth bottle with no frills. It is exactly what I like! It mates perfectly with my MSR water filters and it is lightweight and can take a real beating. I wouldn't change a thing!

This is a great way to stay hydrated. I used this bottle at work, home and out playing. It goes where ever I go so I know I'll be sipping down the H2O. I'll soon be using it snow camping and will see how it fares with hot water in it. Love it anyways!

ive used nalgene bottles for years then i switched to a metal bottle because of the bpa. im glad they switched to a bpa free plastic. my metal bottle got so many dents and scratches in it, and ive dropped my bottle out of a three story window onto concrete and it just bounced and i also hit it with a sledgehammer just to see what it would do, but it didnt fair as well haha. so i dont advise doing this.

Got two of these for camping and put them in the front of the car. Like them so much that we now keep them filled for use all the time. They have completely replaced bottled water for us. We use splashguards (original size) by guyotdesigns from another site to avoid spills while driving.

Its a Nalgene without the weird smell or cancer what more could you ask for? Slap some stickers on it and enjoy

For whatever reason, it seems like I need to clean this much less often than my older nalgene too. Perhaps something about that BPA stuff, but whatever it is, I like it.

BPA in small levels is not harmfull for christ sake come on people your old bottles are fine. SCAM Read a little will ya. I am sure this bottle is great but so are the old ones.