Bobble water bottles are world famous and popular among travel lovers and athletes. These bottles are very well known thanks to the ingenious system whereby the user can filter the water. The designer of the Bobble brand, Karim Rashid, invented a special charcoal filter which filters chlorine and other organic bacteria out of the water. The bobble water bottles can be used up to 300 times, after which the filter can be replaced quickly and easily. In addition, the water bottles are made of recyclable PET, meaning these water bottles are not harmful to the environment.