On December 4th, MARNI released its Christmas collection in collaboration with PORTER. The collection uses polyester material with a Marni print. It features six items in total, including a bag based on the helmet bag from Porter's signature TANKER series, a long zip wallet, a bifold holding zip wallet, an iPad mini case, and a card case (the helmet bag is on display only and is scheduled for release in mid-January 2014). The collection will be sold exclusively at three stores: Hankyu Men's Tokyo, Hankyu Umeda Men's, and Isetan Shinjuku Men's. The second business collection will also be released in early February. Limited items will be released four times a year thereafter.