So far, just the big 32 oz. bottles are recycled versions — or reNEWabottles, as Naked calls them (PDF) — but the company plans to transition all bottles into reNEWabottles in 2010. The recycled bottles are recyclable, too!
I’d drink more Naked if the juice were organic — but for now it’s just the containers that are getting greener. Naked juice does use Rainforest Alliance certified bananas — which are better options than regular bananas, but controversial, since the Rainforest Alliance’s standards tend to be lower than that of other ethical labels.
I did drink a few Naked juices after getting the reNEWabottle package though — and have discovered they make decent vodka mixers.