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J1, or Jack One, is a high-end hybrid strain that is gaining widespread popularity. J1 is a cross between two famous sativas, Skunk #1 and Jack Herer, and is best known for its strong, uplifting, clear-headed buzz that allows for mobility. The flowers are emerald green and frosty with a sweet aroma resembling the unmistakable Jack Herer pungency. This strain’s seemingly only flaw is the top-shelf price that tends to come with its exceptional quality.