... .5 liters 4.Easy take and reuseable Eco-friendly Foldable sport water bottle1. Packing:1pc/opp bag, 144pcs/carton, carton size ... foldable when it's without the water 2) Reusable: the sport foldable water bottle are made from three layers of ultra ... for the younger whent they are climbing, shopping, and doing sport, also for the students