They still have plenty of the older style on Amazon, as well as even more of the new style. I'm a little bummed that the redesign loses an ounce of capacity, but I've heard nothing but good things about the new caps.
I have 7 of the older style caps, and have been using the same pair of white Big Chills for five years, so I don't imagine I'll be getting a new bottle any time soon.
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