The castelli water bottle is perfect for any rider who needs easy access to hydration while out riding this bottle can easily be mounted onto your bike39s bottle cage and won39t rattle around it has a soft squeezable construction which allows you to get a burst of liquid whenever you need it and the triple function cap with a soft push pull nozzle is easy on the mouth and the delivers the fluid fast and contains it securely when you don39t need the drink this water bottle has a 550m