SmarTube Water Bottle System | Drinking System for Bottles | Fits to Standard Water Bottles | Hands Free Drinking | Wide and Standard Water Bottle Adapter

I have used this setup with Smartwater bottles for over 1,100 miles on the Appalachian Trail (so far) and would not hike without it. Simply put, it is a convenient lightweight hydration solution that works extremely well.I did swap-out the bite valve for a Camel Pak one (personal preference) and added a Sawyer fast-fill adapter so the bite valve can be disconnected, and the hose connected directly to my water filter for fast filtering (see pictures). The only improvement I can think of is when filling via the hose I need to loosen the cap to let the air out of the bottle for a fast fill (the valve is one-way -- it lets air in as you drink and stops water from leaking out). I have also seen hikers insert a water filter into the hose, fill their bottles with "dirty" water, then use the hose to pull it through the filter as they drink. It's a very fast-hiking way of using this.Pros:- Lightweight and Durable- Works with common sized bottles- Built-in air valve prevents spills while letting air into the bottle- Using bottles in a backpack’s side pockets means not drinking warm water because the heat from your back is next to the water bladder inside your pack- If your water bladder fails you lose your water and your sleeping bag, etc., get soaked; if a bottle on the side fails, you have a second one -- plus you can easily and cheaply replace it at the next trail townCons:- This item is hard to get sometimes (was surprised to see them back on Amazon), but they do last a long time.It’s a solid system, well worth it.

Flawed design -- straw cap doesn't fit the wide cap that would attach to a wide mouth 32oz Nalgene bottle. straw cap kept popping off as the screw threads don't align. so hopeful and then so disappointed.Also the components in the flimsy box were loose and not in any sort of plastic bag leading me to think that this specific unit might have been returned to Amazon once before.

I used this to fit over my Hydroflask 40 oz bottle and it fits well. I find it difficult to keep hydrated, especially because water bottles have to be so big and heavy with tight fitting lids, so having this system gets me more fluids on the daily. It's really handy at night when I have a hard time getting up and just reach for a drink. I understand it's for hikers and athletes, but would feel more hygienic having a cap for the suction area to keep dust and dirt out. I gave it a wash before using but it still seems to have a plastic like taste after several uses.

I was somewhat apprehensive that some thing that’s an expensive would actually work on my backpacking trips to make staying hydrated easier. I was pleasantly surprised that this little gadget was easy to use and very effective. It prevented me from having to ask people to hand me my water the whole trip. Sometimes I still forgot to drink because I wasn’t used to it being so readily available to me. I would definitely recommend this little gadget.

I bought two of these. I planned to use them on Nalgene wide mouth water bottle because I have a bunch of those. The design of the SmarTube is to put a large adapter cap on the Nalgene bottle and then screw the SmarTube small cap with the valve and tube into that. But after a month or so the threads stripped out. So even though my water bottle is upright with no load on the cap, the small cap pops off and then the sloshing from my walking causes the water to leak out of the bottle and soak my backpack. And leave me without water. One seems to work and the other failed. So YMMV.

I took this with me on my long walk through Spain in the Camino de Santiago a few weeks ago. I absolutely needed and enjoyed using it. Was so much easier to store a larger water bottle in my back behind me and not have to stop to drink. I noticed that the tube that goes into the bottle became discolored from the electrolyte tablets I was using, but this in no way effected the use or cleanliness of this product. What was at first a curiosity has become a necessity on future trips.

The small brown nozzle does not even attach to the brown wide mouth cap that comes with it. It pops off repeatedly on its own and will not even stay attached longer than a few seconds. The threads are not deep enough. Disappointing, would have been a great product, but with cheap manufacturing, is completely useless. Check the other one star reviews, I’m not the only one this happens to.

Used with water bottles so that we could drink with our helmets on (while we were on a two week motorcycle trip). It worked great. My only complaint is it is not compatible with all types of water bottles. It did work well with smart water and Fuji.