Sigg aluminium drink bottles are considered the best in the world. Lightweight and durable, they have a unique leak-proof top that is easy for little hands to open and a turning spout to protect teeth. The Sigg Bottle has a unique inner coating that makes it the only drink bottle that is resistant to fruit acids and isotonic drinks and ensuring it is hygienic and resistant to residual tastes/odours. NEW 2008 design!!!