Why did the lawyers agree to this?

Coca Cola water bottles, cafe at Vancouver International Airport, Richmond, BC

This is one of the oddest pieces of licensing that I've seen. The Coca-Cola company is notoriously protective of the of the brand. The firm also sells both the Coca-Cola soft drink and Dasani brand of bottled water.

So why would Coca-Cola license its name for reusable water bottles? If consumers buy and use these water bottles, then the sales of Dasani are likely to go down.

I just don't understand it, unless of course Coke would rather make the $20 sale of one of these bottles than the $2 sale of a can of Coke or a bottle of Dasani.