Not bad, but not tight

This sports cap is not bad if you want to take his bottle so that the bicycle bottle.
However, there is a possibility that the bottle falls over or is, I advise against this closure, as I know from personal experience that it does not hold tight.
For use where it does not matter if you leak a few drops, the shutter is therefore highly recommended if you want but it apply to a bottle, the "traveling" in the sports bag, I would advise against it.