In my search for new drink bottles for the boys I came across these very cool Vapur Anti Bottles. A foldable reusable water bottle! When full it stands upright and when empty will fit in your pocket. To sum it up, they are reusable, freezable, foldable, attachable, washable (top rack dishwasher) and you can even write your name on them.
Available in 400ml (twin packs) and 500ml.
For more information including the full colour range and to purchase visit Bonito Baby. From $17.95