Master collaborators Size? hook up with Reebok to present the ‘Black Winter’ Pack, with renditions of the GL 6000 and Workout Plus. Prepped for the winter, the blacked-out double drop is served in black waxed leather, 3M details, metal eyelets, and the GL 6000 is layered with ballistic mesh and tough suede too. This pack is limited to one thousand pairs all up (500 each) and will drop this Friday, October 17 at 8am at all Size? stores & online here.