Adidas to Release 'Game of Thrones' Inspired 'White Walkers' To commemorate the final season of 'Game of Thrones,' Adidas will reportedly release a special collection of UltraBoosts in 2019 dubbed "White Walkers." The recently revealed sneakers have translucent, icy blue overlays throughout and the words "Winter Is Here" on the heel. Other versions are also reportedly in the works, such as a "House Lannister" shoe, A "House Targaryen" shoe and more. Adidas has not announced an official release date for any of the shoes yet.