Not keeping water cold , and flow of the water is not good , you have to push hard

I think the Polars make keep things colder a little longer, but these have great flow rate, better than all, and easy to keep clean.

It fits my bike cage perfectly, and the valve provides good flow and good protection from accidental leakage.

Its shorter, has great flow, and comes apart better to clean than the old ones.

Easily a new favorite brand!These bottles are easy to use, are spill proof AND have great water flow!Must have!

The valves offer great flow, don't leak and can be disassembled relatively easy for cleaning (much easier than the previous valves)

Because of the double wall construction it is too hard for me to squeeze to get a good flow

The top nozzle gives a good flow of water

I like the flow of the water and the larger capacity.