It is only two years old and has served me well, but yesterday the cap slipped off as I cycled along the river. Then my tyre punctured. Which, was a good thing, as it forced me to go the the bike shop to actually get my gears repaired. I have been cycling on only one gear for the past month now.
Now that summer is here in all its glory (for one week) a shiny new water bottle is going to be on the top of my shopping list!