A new taste sensation...

from the official press release (translated from Japanese):

Combination of the cola and the cucumber is new, Refreshing Pepsi-Cola worldwide first appearance

...the cola beverage of the refreshing tasting of the balance whose “cucumber” flavor and stimulus of the carbonic acid only of the cola are exquisite. Liquid color of the emerald green which has impact, produces the refreshing impression. In addition, as for the package, the stripe of the green, the gradation of the blue it allotted the motif of the ice which comes up to the base, on the center, it finished in the refreshing design which is refined.
Sale date 2007 June 12th (fire) period limitation