It is lightweight, but who cares when it has 2.5 pounds worth of water in it. When the spout is closed, and the bottle is turned upside down and squeezed, there is no leaking at all. Interestingly, when the spout is open for drinking it leaks quite a bit unless the bottle is squeezed very lightly. For me, the additional volume is worth the leakage. I thought it might be loose in my standard aluminum bottle cages, but I haven't had any problems on bumpy roads during the two months (~150 miles/wk) I've been using them. The thinness of the bottle walls may cause them to wear through more quickly than other bottles, but I haven't noticed any wearing so far.
Stick to Camelbak or another brand the lid has to be in so tight it strips bottle. When you try to use water will come out lid and soak you. Wanted a bigger size but I suggest looking elsewhere
With the pandemic, I am very hesitant to go in to convenience stores for fluids on long weekend rides. So, I needed bottles with more capacity and these did the job. Two of these plus a juice in a jersey pocket put me well over a liter of fluids. The material is very soft/squishy so you may want to take that into consideration if you have certain bottle cages that don't fit tightly around bottle. These are absolutely perfect. Get them if you're going long and worry about the safety of stops.
