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bought the 14oz bottles to mix baby formula in. the lids are not real tight like a normal nalgene bottle so when you shake them they leak a little bit. they don't seem to be the quality one would buy at an outdoor store. they serve the purpose but i think they are lower quality.
good, but leaks a very little with light liquid during airline flights - carrry-on size good delivery time, recommended. The product arrived at the specified time. Product described correctly. I recommend this product.
I selected the wide-mouth type of bottles because I thought they would be easier to deal with when filling or emptying (and, yes, I do have kitchen funnels, but I also use some super-thick liquids like moisturizing hair conditioner). They ARE easy to fill, and I like Nalgene because there is no plastic taste whatsoever. On the particular trip for which I purchased the bottles, I only used ONE. It leaked on our three air flights, but was fine in ground travel. I used it for an antibacterial dental rinse, which is essentially like water - very liquid. Fortunately I have gotten in the habit of putting all liquid travel bottles in zipper plastic bags, and rolling the tops over a few times, so none of my clothes or electronics were damaged(I forget other types of bottles I put in that baggie, but those did not leak; they may have been some aluminum bottles I've had for a couple of decades. Carrying the 4-ounce bottles on board is not an option, since they are more than the 3-ounce limit - and I already have to have my laptop, camera, toothbrush, medicine collection, and all the other stuff you're advised to carry with you instead of checking it.