If you've ever had the good fortune of drinking coconut water from a coconut (preferably picked yourself, top hacked off by machete), you know how refreshing and sublime it is. There's also nothing else that tastes like it. Coconut water is a slightly opaque water that seems to have a little weight to it (it's not the milk, which comes at a later stage in the coconut's life). The taste of coconut is very faint, and it's super smooth going down. There are few things on earth more thirst-quenching on a hot day.
Since, for most of us, young coconuts are not readily available, coconut aficionados are happy there's ONE Coconut Water. Water is usually my preference for a portable drink---filtered water from your tap in a stainless bottle. But there are times when water isn't going to quite do the job. Coconut water is packed with electrolytes (potassium, magnesium, calcium, sodium, and phosphorous), so it makes for quick hydration. Keep some in the fridge and on hot days like today slip a couple in your backpack on the way out the door. Coconut water is also very useful to have on hand in the winter--it's great for when your child is sick and won't eat or drink.
There is no sugar, it's miles away from any "sport drink" out there, and my son thinks it's a huge treat. The packaging is the eco friendly tetra-pak which supposedly doesn't leach any harmful chemicals (I'm always a bit skeptical these days) and ONE participates in a carbon reduction program. Be sure they are super cold--I like to have them refrigerated a good 24 hours before drinking.